This is a five speed, Front Wheel Drive transaxle, with fully electronic controls for the upshifts and downshifts,
with 5th gear being overdrive. The individual gear ratios are achieved through three planetary gear sets. The
components of the planetary gear sets are driven or held by means of four multi-plate drive clutch packs, two
multi-plate brake clutch packs, one reduction brake band and two one way clutches.
To minimize fuel consumption, the torque converter clutch is applied by the PCM, depending on throttle
position and vehicle speed. These units are currently found in several Mitsubishi models, some Hyundai
models and some Kia models, as shown in Figure 1 and 2. The 2007 and later Hyundai models and the 2006 and
later Kia models have an added line pressure control solenoid, along with a revised shift solenoid application.
We wish to thank Mitsubishi Motor Company for the information and illustrations
that have made this booklet possible. A special thanks also to Bob Nuttall for
information and suggestions that have made this a very accurate booklet.
No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or
by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise,
without written permission of Automatic Transmission Service Group. This includes all text illustrations,
tables and charts.
WAYNE COLONNA
TECHNICAL CONSULTANT
PETERLUBAN
TECHNICAL CONSULTANT
GERALDCAMPBELL
TECHNICAL CONSULTANT
JONGLATSTEIN
TECHNICAL CONSULTANT
GREGCATANZARO
TECHNICAL CONSULTANT
The information and part numbers contained in this booklet have
been carefully compiled from industry sources known for their
reliability, but ATSG does not guarantee its accuracy.
INPUT AND OUTPUT SPEED SENSORS ..........................................................................................................................
PCM AND PCM LOCATIONS ..............................................................................................................................................
PRESSURE TAP LOCATIONS .............................................................................................................................................
AIR CHECK LOCATIONS ....................................................................................................................................................
LINE PRESSURE SPECIFICATIONS ................................................................................................................................
TRANSAXLE CASE ASSEMBLY ...............................................................................................................................
REDUCTION BAND SERVO ......................................................................................................................................
VALVE BODY ASSEMBLY (Mitsubishi, Pre-06 Kia and Pre-07 Hyundai Only) .....................................................
VALVE BODY ASSEMBLY (2006-Up Kia and 2007-Up Hyundai Only) ..................................................................
TRANSAXLE FINAL ASSEMBLY .......................................................................................................................................
LOW SPRAG (OWC-1) FREEWHEEL DIRECTION .........................................................................................................
REDUCTION (OWC-2) SPRAG FREEWHEEL DIRECTION ..........................................................................................
REDUCTION BRAKE BAND ADJUSTMENT ....................................................................................................................
BOLT CHART (Except Valve body) (See Valve Body Section For VB Bolts) ........................................................................
SPECIAL TOOLS ...................................................................................................................................................................
THRUST BEARING AND WASHER IDENTIFICATION AND LOCATIONS ..................................................................
FLUID AND END-PLAY SPECIFICATIONS .....................................................................................................................
This is a five speed, Front Wheel Drive transaxle, with
fully electronic controls for the upshifts and downshifts,
and is a re-designed F4A51 with an added planetary,
reduction sprag, direct clutch pack, and reduction
brake band.
The individual gear ratios are now achieved through
three planetary gear sets, and there are three different
planetary gear ratios. Refer to the individual
component application charts (Figure 4 and 5) for the
gear ratios. The components of the planetary gear sets
are driven or held by means of four multi-plate drive
clutch packs, two multi-plate brake clutch packs, one
reduction brake band and two one way clutches
(sprags). Refer to Figure 3 for the internal component
locations.
To minimize fuel consumption, the torque converter
clutch is applied by the Powertrain Control Module
(PCM), depending on throttle position, transaxle
temperature, and vehicle speed. These units are
currently found in several Mitsubishi models, and
referred to as the "F5A5A" in Mitsubishi.
It is also found in some Hyundai and Kia models, and
they both refer to it as the "A5HF1", and this version
operates much differently than the Mitsubishi models.
Refer to Figure 1 for identification tag information and
Figure 2 for vehicle application chart.
Mitsubishi, Pre-07 Hyundai, Pre-2006 Kia Operation
The Mitsubishi version uses the basic 4 speed valve
body with an added solenoid to control the reduction
band, so it now has six solenoids instead of five. The
Low/Reverse solenoid is now a double duty solenoid
and is used to also apply the added direct clutch pack,
based on position of the switch valve in valve body.
The valve body has an added control valve for the
reduction band and an added Fail-safe "C" valve.
The component and the solenoid application charts for
Mitsubishi, Pre-07 Hyundai and Pre-06 Kia models are
found in Figure 4.
2007-Up Hyundia, 2006-Up Kia Operation
The later Hyundai and Kia version uses the same six
solenoid valve body as the earlier models except, it has
an additional solenoid, (Total of 7), used strictly to
control line pressure. The Low/Reverse solenoid is still
a double duty solenoid and is used to apply the added
direct clutch pack, based on the position of the switch
valve in the valve body.
However, the 2007-Up Hyundai and 2006-Up Kia
internal component and solenoid applications are
different than the earlier version. The component and
solenoid application charts for the 2007-Up Hyundai
and 2006-Up Kia are found in Figure 5.
* Low/Reverse clutch is applied below 6 mph, released above 6 mph.
** TCC dependant on throttle position, temperature and vehicle speed.
Note: Reverse Clutch is applied with fluid pressure from the manual valve.
Note: (OWC = One Way Clutch)..
ON
ONON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON*
ON
ON
FLUID REQUIREMENTS
Mitsubishi Diamond SP III
"MITSUBISHI, pre-2007 hyundai, pre-2006 kia ONLY"
SOLENOID APPLICATION CHART
Gear
Range
U.D.
Sol
2nd
Sol
O.D.
Sol
TCC
Sol
ON
ON
ON
ON
ON
ON
L/R-Dir.
HOLD HOLD
HOLD
HOLD
RED.
Sol***
Sol
ON**
ON**
3.117
3.789
2.162
1.421
1.000
0.686
Final Drive
Ratio 3.325
* Low/Reverse clutch is applied below 6 mph, and released above 6 mph.
** Torque Converter Clutch (TCC) dependant on throttle position, temperature and vehicle speed.
*** Low/Reverse Clutch or Direct Clutch depending on switch valve position.
Solenoid ON = Energized
Solenoid OFF = De-Energized
Failsafe: Two failsafe strategies are available, 2nd gear and 3rd gear.
Should all solenoids be turned Off (i.e. electrical failure), 3rd gear will be the result.
2nd gear failsafe "may" be commanded by the TCM, energizing the appropriate solenoids. Reverse always available.
* Low/Reverse clutch is applied below 6 mph, released above 6 mph.
** Damper Converter Clutch (DCC) dependant on throttle position, temperature and vehicle speed.
Note: Reverse Clutch is applied with fluid pressure from the manual valve.
Note: (OWC = One Way Clutch)..
ON
ONON
ON
ON
ON
ON
ON
ON
ONON
ON
ON
ON
ON*
ON
ON
ON
ON
ON
ON
ON
HOLD HOLD
HOLD
HOLD
HOLD
FLUID REQUIREMENTS
Hyundai/Kia Diamond SP III
"2007-up HYUNDAI, 2006-up KIA ONLY"
SOLENOID APPLICATION CHART
Gear
Range
U.D.
Sol
2nd
Sol
O.D.
Sol
DCC
Sol
L/R-Dir.
Sol***
RED.
Sol
ON**
ON**
Line
VFS Sol
4.5863.859
4.4573.840
2.4422.092
1.6861.440
1.2331.048
0.8680.728
Final Drive
Ratio 3.333
{
* Low/Reverse clutch is applied below 6 mph, and released above 6 mph.
** Damper Converter Clutch (DCC) dependant on throttle position, temperature and vehicle speed.
*** Low/Reverse Clutch or Direct Clutch depending on switch valve position.
**** VFS is constantly modulating to control Line Pressure depending on throttle opening, engine load and vehicle speed.
Solenoid ON = Energized
Solenoid OFF = De-Energized
Failsafe: Two failsafe strategies are available, 2nd gear and 3rd gear.
Should all solenoids be turned Off (i.e. electrical failure), 3rd gear will be the result.
2nd gear failsafe "may" be commanded by the TCM, energizing the appropriate solenoids. Reverse always available.
The Mitsubishi, Hyundai and Kia all use 6 solenoids
mounted on the valve body, to upshift and downshift the
transaxle, as well as the apply and release of the
TCC/DCC.
However, two different shift solenoid application
patterns are used, as shown on Page 6 and 7.
Refer to Page 6 for internal component and solenoid
application charts for "Mitsubishi" and the earlier
"Hyundai/Kia" models.
Refer to Page 7 for internal component and solenoid
application charts for later "Hyundai/Kia" models.
The individual shift solenoid locations are the same
between the two and are shown in Figure 6. Function of
each solenoid is described in detail on Page 9.
3 DIFFERENT
SIZE "O" RINGS
MD758981
Line Pressure Control
The 2007-Up Hyundai and 2006-Up Kia vehicles only,
use an added VFS Solenoid to control line pressure on
all of their models that use the A5HF1 transaxle, and the
location on valve body is shown in Figure 7.
All of the Mitsubishi and pre-2006 Hyundai/Kia
vehicles use only the pressure regulator valve in the
valve body for line pressure control. Both versions
have the capability of adjusting line pressure
mechanically.
The F5A51 transaxle uses six solenoids for all of the
upshifts, downshifts and apply & release of the
TCC/DCC. All six of the shift solenoids are "Normally
Applied" Pulse Width Modulated style and will
interchange in any of their positions.
The Low/Reverse solenoid is a double duty solenoid
and will apply the Low/Reverse Clutch or will apply
the Direct Clutch, depending on the position of the
switch valve in the valve body.
All shift solenoids can be air checked using the
procedure shown in Figure 6, and solenoid resistance is
checked across the 2 terminals. Solenoid locations on
the valve body are also shown in Figure 6 and 7.
The Low/Reverse Solenoid, is used to apply and
release the low/reverse clutch. When solenoid is deenergized (OFF), the low/reverse clutch is ON. When
solenoid is energized (ON), low/reverse clutch is OFF.
This function occurs with the switch valve in the valve
body in the downshifted position.
When the switch valve is upshifted, by overdrive
clutch fluid, a different sequence of events occur still
using the same solenoid. In this configuration, The Low/Reverse Solenoid, is used to apply and release the
Direct Clutch. When the solenoid is de-energized
(OFF), the direct clutch is ON. When the solenoid is
energized (ON), the direct clutch is OFF.
Solenoid Function
The Underdrive Clutch Solenoid, is used to apply and
release the underdrive clutch. When solenoid is deenergized (OFF), the underdrive clutch is ON. When
solenoid is energized (ON), the underdrive clutch is
OFF.
The Overdrive Clutch Solenoid, is used to apply and
release the overdrive clutch. When solenoid is deenergized (OFF), the overdrive clutch is ON. When
solenoid is energized (ON), the overdrive clutch is OFF.
The Second Clutch Solenoid, is used to apply and
release the second brake clutch. When solenoid is deenergized (OFF), the second brake clutch is ON. When
solenoid is energized (ON), the second brake clutch is
OFF.
The Reduction Solenoid, is used to apply and release
the reduction brake band. When solenoid is deenergized (OFF), the reduction brake band is ON.
When solenoid is energized (ON), the reduction brake
band is OFF.
The VFS Solenoid, (7th solenoid) used on the 2007Up Hyundai and 2006-Up Kia models only, to more
precisely control line pressure according to current
vehicle driving conditions. It is a Variable Force
Solenoid with duty control that uses a higher frequency
of (600 Hz), instead of the existing PWM style that uses
a lower frequency (60 Hz) to control all other solenoids.
In PWM control, amount of oil flow is determined by
the duration of ON signal with repeated ON/OFF
pulses.
In VFS control, amount of oil flow is determined by the
width of the oil passage opening.
2007-Up Hyundai and 2006-Up Kia models are also
equipped with an orificed tube that provides a constant
stream of cooler fluid spraying on the VFS Solenoid for
cooling the solenoid, which provides increased
durability.
Electronic Components
Continued on Page 10
The TCC/DCC Solenoid, is used to apply and release
the Torque Converter Clutch. When the solenoid is deenergized (OFF), the converter clutch is OFF, as it
routes fluid to the spring side of the converter clutch
control valve in the valve body. When solenoid is
energized (ON), the converter clutch is ON, as it now
exhausts fluid from the spring side of control valve,
allowing it to stroke.
The Transaxle Fluid Temperature (TFT) sensor is
located in the valve body, mounted into a fluid passage
with a valve body to case bolt and requires an "O" ring
seal, as shown in Figure 8.
The TFT is a negative temperature coefficient sensor,
which means that as temperature increases the
resistance decreases, as shown in Figure 9.
Internal Wire Harness (10-Way Mitsubishi) And
(10-Way Early Hyundai/Kia)
The 10-way pass-thru case connector and internal wire
harness assembly carries feed voltage to all solenoids
and the switched ground signals from the Powertrain
Control Module (PCM) to the appropriate solenoid to
control all of the upshifts and downshifts, as well as the
TCC apply and release (See Figure 10 and 11).
The Internal wire harness is also used to feed 5 volts
from the PCM to the TFT sensor and carries the fluid
temperature signal back to the PCM.
The 10-way pass-thru case connector and internal wire
harness assembly, connector colors, and wire colors are
shown in Figure 11.
The pass-thru case connector terminal identification
and terminal function along with a resistance chart are
shown in Figure 13.
Wire schematic for the Mitsubishi Eclipse is shown in
Figure 14.
Note: This manual does not include "All" of the wire
schematics for every model.
Internal Wire Harness (12-Way 2007-Up Hyundai)
And (12-Way 2006-Up Kia)
The 12-way pass-thru case connector and internal wire
harness assembly carries feed voltage to all solenoids
and the switched ground signals from the Powertrain
Control Module (PCM) to the appropriate solenoid to
control all of the upshifts and downshifts, as well as the
DCC apply and release (See Figure 10 and 12).
The Internal wire harness is also used to feed 5 volts
from the PCM to the TFT sensor and carries the fluid
temperature signal back to the PCM.
The 12-way pass-thru case connector and internal wire
harness assembly, connector colors, and wire colors are
shown in Figure 12.
The pass-thru case connector terminal identification
and terminal function along with a resistance chart are
shown in Figure 15.
Wire schematic for the 2007 Hyundai Azera is shown
in Figure 16 and wire schematic for the 2006 Kia
Sedona is shown in Figure 17.
The Transaxle Range Switch (TRS) is located on top of
the transaxle, as shown in Figure 18. The TRS is a
mechanical multi-position switch with four selector
positions, one reverse switch and one switch for
positions P/N, for starting control. Refer to the TRS
wire schematic in Figure 22.
The appearance of the selector lever, as shown in
Figure 19, will vary between the different vehicle
applications. However, they all have four detent
positions and the operation and function remains the
same.
Selector Lever Positions
When the "Park" position is selected, there is no
P
powerflow through the transmission. The parking pawl
is engaged which locks the output shaft to the case. The
engine can be started and the ignition key can be
removed.
Transaxle Range
Switch Assembly
When the "Reverse" position is selected, the vehicle
R
can be operated in a rearward direction at a reduced gear
ratio.
When the "Neutral" position is selected, there is no
N
powerflow through the transmission. The output shaft
is not held and is free to rotate and the engine can be
started. This position can also be selected while the
vehicle is moving, to restart the engine if that becomes
necessary.
The "Drive" position is the normal position for most
D
forward gear operations. The Drive position provides
automatic upshifts and downshifts, apply and release of
the converter clutch, and maximum fuel economy
during normal operation. Drive range allows the
transmission to operate in each of the five forward gear
ratios. Downshifts are available for safe passing, by
depressing the accelerator.
With the shift lever in the "D" position and moved into
the right hand selector gate, it enables the driver to
select the range of gears by tapping the selector lever
towards the "-" or "+" to cause the transaxle to
downshift or upshift.
Mitsubishi Transaxle Range Switch CheckTransaxle Range Switch Adjustment
The only voltage sent to the TRS goes in at terminal 8
and 10 as shown in Figure 22. In Reverse, voltage exits
through terminal 7 to the reverse lamps and to the
PCM. Ignition start voltage is sent to terminal 10 and
out thru terminal 9 to the starter relay. Diagnosis here is
easily done using the DVOM set to DC volts.
The TRS can also be checked with the connector
removed and your DVOM set to Ohms. You should
have continuity across the terminals shown in the chart
in Figure 20 (Less than 2 ohms), related to the position
of the gear selector lever. If these do not check properly,
replace the transaxle range switch.
6
10
5
9
4
3
8
2
7
1
(In Vehicle "All Models")
1. Place the shift selector lever in the "N" position.
2. Loosen the control cable to the manual control
lever on transaxle.
3. Place the manual control lever on transaxle in
neutral position.
4. Loosen transaxle range switch mounting bolts
and turn the TRS body so the hole in the end of
the manual control lever and the hole in flange
of the TRS body are aligned.
Note: The TRS body can be aligned by inserting
a 5-mm diameter steel bar (3/16" bit) into the
end hole of the manual control lever and the
flange hole in TRS switch body, as shown in
Figure 21.
5. Torque transaxle range switch mounting bolts to
11 N·m (97 in.lb.).
Note: Ensure that the switch body does not
The Transaxle Range Switch (TRS) is located on top of
the transaxle, as shown in Figure 24. The TRS is a
mechanical multi-position switch with four selector
positions on the "Tiptronic" version, seven selector
positions on "Non-Tiptronic" versions, one reverse
switch and one switch for positions P/N, for starting
control. Refer to Figure 25 for the two versions of the
Shift Lever assembly and the TRS wire schematic is
shown in Figure 26.
"Hyundai Only" Selector Lever Positions
When the "Park" position is selected, there is no
P
powerflow through the transmission. The parking pawl
is engaged which locks the output shaft to the case. The
engine can be started and the ignition key can be
removed.
When the "Reverse" position is selected, the vehicle
R
can be operated in a rearward direction at a reduced gear
ratio.
When the "Neutral" position is selected, there is no
N
powerflow through the transmission. The output shaft
is not held and is free to rotate and the engine can be
started. This position can also be selected while the
vehicle is moving, to restart the engine if that becomes
necessary.
The "Drive" position is the normal position for most
D
forward gear operations. The Drive position provides
automatic upshifts and downshifts, apply and release of
the converter clutch, and maximum fuel economy
during normal operation. Drive range allows the
transmission to operate in each of the five forward gear
ratios. Downshifts are available for safe passing, by
depressing the accelerator.
On "Tiptronic" models with the shift lever in "D"
position and moved into the right hand selector gate, it
enables the driver to select the range of gears by tapping
the selector lever towards the "-" or "+" to cause the
transaxle to downshift or upshift. Refer to Figure 25.
When the "Third" position is selected, the transaxle
3
will take off in first gear and not allow any shifts above
third gear. This position can also be used for engine
braking as necessary.
0 1 813 3
6 G 2U K D
Transaxle Range
Switch Assembly
When the "Second" position is selected, the transaxle
2
will take off in first gear and not allow any shifts above
second gear. This position can also be used for engine
braking as necessary.
When the "Low" position is selected, the transaxle
L
will take off in first gear and not allow any shifts above
first gear. This position can also be used for engine
braking as necessary.
"Hyundai Only" Transaxle Range Switch Check
The only voltage sent to the TRS goes in at terminal 8
and 10 as shown in Figure 26. In Reverse, voltage exits
through terminal 7 with a signal to the BCM & PCM.
The BCM illuminates the Reverse lamps.. Ignition start
voltage is sent to terminal 10 and out thru terminal 9 to
the starter relay. Diagnosis here is easily done using the
DVOM set to DC volts.
The TRS can also be checked with the connector
removed and your DVOM set to Ohms. You should
have continuity across the terminals shown in the charts
in Figure 25 (Less than 2 ohms), related to the position
of the gear selector lever. If these do not check properly,
replace the transaxle range switch.
The Transaxle Range Switch (TRS) is located on top of
the transaxle, as shown in Figure 28. The TRS is a
mechanical multi-position switch with four selector
positions, one reverse switch and one switch for
positions P/N, for starting control. Refer to the TRS
wire schematic in Figure 32.
The appearance of the selector lever, as shown in
Figure 29, will vary between the different vehicle
applications. However, they all have four detent
positions and the operation and function remains the
same.
Selector Lever Positions
When the "Park" position is selected, there is no
P
powerflow through the transmission. The parking pawl
is engaged which locks the output shaft to the case. The
engine can be started and the ignition key can be
removed.
Transaxle Range
Switch Assembly
When the "Reverse" position is selected, the vehicle
R
can be operated in a rearward direction at a reduced gear
ratio.
When the "Neutral" position is selected, there is no
N
powerflow through the transmission. The output shaft
is not held and is free to rotate and the engine can be
started. This position can also be selected while the
vehicle is moving, to restart the engine if that becomes
necessary.
The "Drive" position is the normal position for most
D
forward gear operations. The Drive position provides
automatic upshifts and downshifts, apply and release of
the converter clutch, and maximum fuel economy
during normal operation. Drive range allows the
transmission to operate in each of the five forward gear
ratios. Downshifts are available for safe passing, by
depressing the accelerator.
With the shift lever in the “D" position and moved into
the right hand selector gate, it enables the driver to
select the range of gears by tapping the selector lever
towards the "-" or "+" to cause the transaxle to
downshift or upshift.
Kia Transaxle Range Switch CheckTransaxle Range Switch Adjustment
The only voltage sent to the TRS goes in at terminal 8
and 10 as shown in Figure 32. In Reverse, voltage exits
through terminal 7 to the BCM & PCM. The
BCM/PCM illuminates the reverse lamps. Ignition
start voltage is sent to terminal 10 and out thru terminal
9 to the starter relay. Diagnosis here is easily done
using the DVOM set to DC volts.
The TRS can also be checked with the connector
removed and your DVOM set to Ohms. You should
have continuity across the terminals shown in the chart
in Figure 30 (Less than 2 ohms), related to the position
of the gear selector lever. If these do not check properly,
replace the transaxle range switch.
6
10
5
9
4
3
8
2
7
1
(In Vehicle "All Models")
1. Place the shift selector lever in the "N" position.
2. Loosen the control cable to the manual control
lever on transaxle.
3. Place the manual control lever on transaxle in
neutral position.
4. Loosen transaxle range switch mounting bolts
and turn the TRS body so the hole in the end of
the manual control lever and the hole in flange
of the TRS body are aligned.
Note: The TRS body can be aligned by inserting
a 5-mm diameter steel bar (3/16" bit) into the
end hole of the manual control lever and the
flange hole in TRS switch body, as shown in
Figure 31.
5. Torque transaxle range switch mounting bolts to
11 N·m (97 in.lb.).
Note: Ensure that the switch body does not
The Input and Output Speed Sensors are located on top
of the transaxle case, as shown in Figure 34, and
retained with a bolt. Both speed sensors are equipped
with an "O" ring seal to seal the case bore, as shown in
Figure 35 and 36.
Refer to Page 30 for speed sensor operation and
diagnosis.
When the key is turned on, you should see battery
voltage at input speed sensor terminal 3. A coil built into
the input shaft speed sensor generates a 0 - 5 volt pulse
signal when the input shaft rotates. The pulse signal
frequency increases with a rise in input shaft speed.
The PCM interprets this pulse signal as input shaft
speed. The input shaft speed sensor generates the pulse
signal as the teeth on the underdrive clutch housing pass
the magnetic tip of the sensor.
The input speed sensors all operate in the same manner
but all of the PCM terminals are different. You must
refer to the wiring schematic for the model you are
working on.
Mitsubishi wire schematic - See Page 13.
Hyundai wire schematic - See Page 15.
Kia wire schematic - See Page 16.
Output Speed Sensor
When the key is turned on, you should see battery
voltage at output speed sensor terminal 3. A coil built
into the output shaft speed sensor generates a 0 - 5 volt
pulse signal when the output shaft rotates. The pulse
signal frequency increases with a rise in output shaft
speed. The PCM interprets this pulse signal as output
shaft speed. The output shaft speed sensor generates the
pulse signal as the teeth on the direct planetary carrier
pass the magnetic tip of the sensor.
The output speed sensors all operate in the same
manner but all of the PCM terminals are different. You
must refer to the wiring schematic for the model you are
working on.
Mitsubishi wire schematic - See Page 13.
Hyundai wire schematic - See Page 15.
Kia wire schematic - See Page 16.
Conditions To Set DTC
If no output pulse is detected from the input shaft speed
sensor for one second or more, while driving in 3rd or
4th gear at a speed of 30 km/h (19 mph) or more, there is
an open or short in the input shaft speed sensor circuit,
and a DTC is set. When a DTC is output four times, the
transaxle is locked into 3rd gear as a failsafe measure.
Conditions To Set DTC
If the output from the output speed sensor is
continuously 50% lower than vehicle speed for one
second or more, while driving in 3rd or 4th gear at a
speed of 30 km/h (19 mph) or more, there is an open or
short in the output speed sensor circuit, and a DTC is
set. When a DTC is output four times, the transaxle is
locked into 3rd as a failsafe measure.
The main function of the PCM is to electronically
control a multitude of components including the
transaxle upshifts and downshifts, and the torque
converter clutch apply or release. The PCM learns the
driving habits and the preferences of each individual
driver by processing driving data on engine output,
engine load, foot brake operation, etc. The PCM then
uses this data to adjust shift timing to best suit the
drivers style.
Reading And Erasing DTC's
The PCM monitors its input and output signals, some
signals at all times and others only under specified
conditions. When an irregular signal is initially
monitored, the PCM decides that a malfunction has
occured and records this as a diagnostic trouble code.
The diagnostic results can be read with scan tool.
Diagnostic trouble codes are kept in memory by direct
battery feed. The codes are retained in memory even if
the ignition switch is in the Off position. The DTC's are
not erased even after the battery terminals and the PCM
connector are disconnected. A compatable scan tool is
required to read and erase diagnostic trouble codes.
Diagnostic Trouble Codes are described as follows:
Mitsubishi Codes, Figure 38.
Hyundai & Kia Codes, Figure 39 and 40.
Selector Lever Position Indicator Light
(Mitsubishi Only)
The selector lever position indicator light located in the
instrument cluster, as shown in Figure 37, will flash
once per second (D1 thru D5) if there are any diagnostic
trouble codes stored related to the transaxle system.
Check for diagnostic trouble codes if the selector lever
position indicator (D1 thru D5) is flashing once per
second (Requires Scanner). This applies to
Mitsubishi Only. Hyundai and Kia models use a
Malfunction Indicator Lamp (MIL) that illuminates
when there is a trouble code stored.
Note: If the selector lever position indicator light
(D1 thru D5) is flashing "twice" per second, the
transaxle fluid temperature is high. It flashes
when the fluid temp is approximately 257°F or
more, and quits flashing when fluid temp drops
to approximately 239°F or less.
80
60
40
20
TCL
OFF
0
888888
100
MPH
ABS
888
ODO
CRUISE
km/h
A B
120
140
160
Reset
D1
2
1
0
3
-
X1000RPM
BRAKE
+
4
SERVICE
ENGINE
SOON
5
6
7
8
Powertrain Control Module (PCM) Locations
Mitsubishi - The PCM is located in the engine
compartment on the left inner fender panel, just below
the relay box. PCM connector views Page 20.
Hyundai - The PCM is located in the left rear of the
engine compartment. PCM connector views Page 24.
Kia - The PCM is located on firewall, at the left rear of
the engine compartment, behind the relay box. PCM
connector views Page 28.
** TCC Apply (DA) pressures may vary between 0 and 50 psi, when OFF, depending on throttle
opening and vehicle speed. With TCC fully applied pressure should be approximately 100 psi.
Underdrive
Clutch
137-153
137-153
113-131
113-131
* TCC Release (DR) pressures measured at 1500 RPM.
Second
Clutch
137-153
113-127
Overdrive
Clutch
113-131
113-131
113-131
Low/Rev
Clutch
44-56
185-256
44-56
137-153
Reverse
Clutch
185-256
Reduction
Band
44-56
185-256
44-56
137-153
137-153
113-128
Clutch
113-128
113-128
"2007-UPHYUNDAI & 2006-UP KIA"
LINE PRESSURE TEST SPECIFICATIONS
Direct
T.C.C.
Apply
**
**
T.C.C.
Release
* 32-52
* 73-106
* 32-52
* 73-106
* 73-106
* 65-104
0
0
Gear
Park
Reverse
Neutral
"D"-1st
"D"-2nd
"D"-3rd
"D"-4th
"D"-5th
** DCC Apply (DA) pressures may vary between 0 and 50 psi, when OFF, depending on throttle
opening and vehicle speed. With DCC fully applied pressure should be approximately 100 psi.
Underdrive
Clutch
137-153
137-153
113-131
113-131
* DCC Release (DR) pressures measured at 1500 RPM.
Service information provided in this manual by
ATSG is intended for use by professional, qualified
technicians. Attempting repairs or service without the
appropriate training, tools and equipment could cause
injury to you or others.
The service procedures we recommend and describe
in this manual are effective methods of performing
service and repair on this unit. Some of the
procedures require the use of special tools that are
designed for specific purposes.
This manual contains CAUTIONS that you must
observe carefully in order to reduce the risk of injury
to yourself or others. This manual also contains
NOTES that must be carefully followed in order to
avoid improper service that may damage the vehicle,
tools and/or equipment.
TRANSAXLE DISASSEMBLYSAFETY PRECAUTIONS
EXTERNAL COMPONENTS
1. The transaxle should be steam cleaned on the
outside, to remove any dirt or grease before
disassembly begins.
2. This transaxle can be disassembled very easily
on a work bench without the benefit of any
holding fixture for rotation.
3. Remove the torque converter from transaxle,
as shown in Figure 47.
Caution: Use care when removing the torque
converter, to avoid personal injury and/or
damage to converter, as it is heavy.
12. Remove the speedometer adapter, the vehicle
speed sensor, or the sealing cap, depending on
which the transaxle is equipped with. Refer to
Figure 50.
13. As a diagnostic aid, install dial indicator, as
shown in Figure 49, measure and record the
input shaft end play.
1. Remove the 15 pan bolts and remove the oil
pan, as shown in Figure 51.
2. Disconnect the shift solenoid connectors and
the fluid temperature sensor connector, as
shown in Figure 52.
Note: Some of the shift solenoids can be
cross-connected. We have provided you with
color of the wires that we observed. If yours
are different, label them now to prevent you
from cross-connecting on re- assembly.
3. Remove the connectors and drape the wire
harness up and over the top of pan rail.
Note: The Mitsubishi and early Hyundai/Kia
version is illustrated in Figure 52.
2007-Up Hyundai and 2006-Up Kia versions
have one extra line pressure solenoid and are
illustrated in Figure 53.
4. If you have 2007-Up Hyundai or 2006-Up Kia
version, remove the connectors, as shown in
Figure 53, and drape the wire harness up and
over the top of pan rail.
Note: We have provided you with color of the
wires that we observed. If yours are different,
label them now to prevent cross-connecting on
re-assembly (See Figure 53).
5. Remove the internal detent spring, as shown in
Figure 54.
6. Remove the TFT sensor, as shown in Figure 54,
remove and discard the "o" ring seal.
7. Remove the valve body to case mounting bolts
as shown in Figure 55.
Note: Remove all valve body bolts "Except"
the bolts that we labeled with "E", as shown
in Figure 55. The bolts labeled with "E"
are solenoid body to main valve body bolts.
14. Remove each accumulator piston and springs,
as shown in Figure 58.
Note: The Mitsubishi accumulator springs
are identified with blue dye, as shown in
Figure 60, and Hyundai/Kia accumulator
springs are identified with White and Yellow
paint, also shown in Figure 60. If your
springs are not identified, label them now as
you remove them, for re-assembly ID.
15. Remove and discard all accumulator piston
seal rings, as shown in Figure 59.
16. Remove the case connector snap ring and
remove the internal wire harness through the
inside of the case, as shown in Figure 61.
Note: Both the 10-way Mitsubishi and early
Hyundai/Kia, and the 12-way late Hyundai/Kia
internal harness are shown in Figure 61.
17. Remove and discard the case connector
"O" ring, as shown in Figure 61.
18. With the manual shaft retaining pin removed,
rotate back and forth and remove the inside
detent lever and parking rod through the inside
of the case, as shown in Figure 62.
19. Remove and discard the two "O"ring seals on
the manual shaft, as shown in Figure 62.
20. Rotate the case on the work bench so that the
converter housing is facing up, as shown in
Figure 64.
21. Remove the 20 torque converter housing bolts,
as shown in Figure 63 and 64.
Note: Six of these bolts are inside of the
converter housing, as shown in Figure 63.
22. Remove and discard the two small "O" rings
between the converter housing and the case, as
shown in Figure 64.
Note: The "O" rings may be stuck to the
torque converter housing.
Continued on Page 50
28
29
27
TIM
K
E
N
®
P9
00
N
P8
89
9
67
US
A
B1A K 5
2F5 5
1 E
27 CONVERTER COVER TO CASE "O" RINGS (2 REQUIRED).
28 CONVERTER COVER TO CASE RETAINING BOLTS (20 REQ.).
29 TORQUE CONVERTER HOUSING.
38. Remove the two parking rod roller support pins,
as shown in Figure 71, using needle nose pliers.
39. Remove the parking rod roller support from the
inside of case, as shown in Figure 71.
40. Remove the parking pawl pivot pin, as shown
in Figure 72.
41. Remove the parking pawl, and return spring as
an assembly, as shown in Figure 72.
42. Before removing the direct planetary carrier and
transfer driven gear assembly, measure the depth
of the transfer gear below the case surface, as
shown in Figure 73, and record measurement
for final assembly process.
43. Now you can remove the direct planetary carrier
and driven transfer gear assembly, as shown in
Figure 74, and set aside for component rebuild
section.
44. Remove the direct clutch housing from case, as
shown in Figure 75, and set aside for component
rebuild section.
45. Remove the reduction band from the case, as
shown in Figure 75.
Note: May be necessary to remove the band
anchor plug and "O" ring to remove band, as
shown in Figure 76.
55. Remove the fourteen rear cover retaining bolts,
as shown in Figure 79.
56. Remove the transaxle rear cover, as shown in
Figure 79, and set aside for component rebuild
section.
57. Remove and discard the six rear cover to case
"O" ring seals, as shown in Figure 79.
56
RV
58. Remove and discard the case cover to the direct
clutch accumulator "O" ring seal, as shown in
Figure 80.
59. Remove the direct clutch accumulator piston and
return spring, as shown in Figure 80.
60. Remove and discard direct clutch accumulator
piston seal ring (See Figure 80).
Continued on Page 57
OD
OD
65
57
D I
D I R
R
64
61
62
63
D I R
D I R
56 REAR COVER RETAINING BOLTS (14 REQUIRED).
57 REAR COVER.
65 REAR COVER TO CASE "O" RING SEALS (6 REQUIRED).
56
61 DIRECT CLUTCH ACCUMULATOR PISTON.
62 DIRECT CLUTCH ACCUMULATOR PISTON SEAL RING.
63 DIRECT CLUTCH ACCUMULATOR PISTON RETURN SPRING.
64 DIRECT CLUTCH ACCUM. TO CASE COVER "O" RING SEAL.
68. Remove 2nd clutch retainer snap ring, as shown
in Figure 84.
69. Remove the 2nd clutch retainer/piston assembly
and the return spring, as shown in Figure 84, and
set aside for component rebuild section.
CAUTION: Various 2nd clutch stack-ups in the
Hyundai and Kia models are in service. If you're
working on Hyundai/Kia, remove 2nd clutch
pack very carefully and tag the components for
identification including which direction the
stepped plates are installed. Refer to Page 59
for the various stack-ups observed, and there
may be more than shown at this time.
70. If your working on Mitsubishi, remove the 2nd
clutch plates as shown in Figure 84.
Continued on Page 60
149
148
144
CAUTION - CAUTION
REFER TO PAGE 59
143
184
200
C
141
140
D I R
D I R
3
3
142
D I R
D I R
184 NUMBER 5 THRUST BEARING.
200 REVERSE SUN GEAR AND SHELL ASSEMBLY.
85. Remove the transfer drive gear by accessing
the retaining bolts through the access holes
provided in gear, as shown in Figure 93.
Note: Reference marks must be placed on
case and bearing housing (See Figure 93), as
the housing bolts in case in 1 direction only.
If bearing service is not necessary, the transfer
drive gear does not need to be removed.
86. Rotate the transfer gear as necessary so the
access holes are over the bolts for removal and
remove four bolts.
87. Rotate the transfer gear 45 degrees and remove
the remaining four bolts (Total of 8).
CENTER PUNCH OR PERMANENT MARKER
ON CASE AND BEARING HOUSING
88. Remove the transfer drive gear assembly, as
shown in Figure 94.
SPECIAL NOTE:
The transfer drive gear and bearings are serviced
only as a complete assembly. The exploded views
provided in this manual of the transfer drive gear and
bearings, as shown in Figure 95, are for reference
only.
7. Install new differential bearing cup as necessary
using the proper driver, as shown in Figure 97.
Note: We will cover the differential pre-load
adjustment during the final assembly process.
8. Install new caged needle bearing, as necessary,
into case, as shown in Figure 98 using proper
driver and adapter.
Note: Caged needle bearing must be installed
0.5 - 1.5 mm (.020" - .059") below number 12
thrust bearing race case surface, as shown in
Figure 99.
9. Install new direct clutch seal rings into the case
grooves, as shown in Figure 98, and lube with
small amount of Trans-Jel®.
Transaxle Case Assembly (Cont'd)
Reduction Sprag (OWC-2) Assembly (Cont'd)
14. Install the reduction sprag assembly into the outer
race, as shown in Figure 103, with the "lip" on
sprag cage facing up.
Note: The reduction sprag cage has no arrows
on it to help with direction of installation. The
"lip" must face up and the "windows" to the
left, with the ID groove on the outer race also
facing up, as shown in Figure 103.
15. Install the second reduction sprag end bearing, as
shown in Figure 103, with the smooth side
facing up.
16. Install the second reduction sprag retainer by
snapping it over the lip on the outer race, as
shown in Figure 103.
17. Install reduction sprag race cushion plate into the
case, as shown in Figure 104.
Note: Cushion plate is used on Hyundai & Kia
only and 2 wider lugs go toward area of case
with no lug cavities.
18. Install the completed reduction sprag (OWC-2)
assembly, as shown in Figure 104, into transaxle
case with the ID groove facing up.
19. Install the reduction sprag assembly retaining snap
ring, as shown in Figure 104, and ensure that it
is fully seated (See Figure 105).
Transaxle Case Assembly (Cont'd)
Reduction Sprag (OWC-2) Assembly
20. Ensure that reduction sprag retaining snap ring is
fully seated in groove, as shown in Figure 105.
21. Temporarily install the direct clutch housing, as
shown in Figure 106, to check proper operation
of the reduction sprag (OWC-2).
Note: Direct clutch housing should freewheel
counter-clockwise and lock in the clockwise
direction, as shown in Figure 106.
22. Remove the direct clutch housing and set the
completed case aside for final assembly.
1. Remove and discard the overdrive clutch seal
rings and the reverse clutch seal rings.
2. Inspect end cover journal and sealing ring area
for any wear and/or damage and check seal ring
groove clearance with a feeler gage, as described
in Figure 107.
3. Install new input shaft caged needle bearing, as
necessary, using the proper driver, as shown in
Figure 108.
4. Install new reverse clutch seal rings into their
grooves, as shown in Figure 109, and ensure
they are properly hooked and seated.
5. Install new overdrive clutch seal rings into their
grooves, as shown in Figure 109, and ensure
they are properly hooked and seated.
6. Install selective number 8 thrust bearing race, as
shown in Figure 109, and retain with a small
amount of Trans-Jel®.
7. Set the completed rear cover assembly aside for
the final assembly process (See Figure 110)
1. Install new "O" ring seal into the groove on the
reduction servo cover, as shown in Figure 111,
and lube with a small amount of Trans-Jel®.
2. Install new scarf-cut sealing ring into the groove
on the reduction servo piston, as shown in
Figure 111.
3. Set the completed reduction servo piston and
cover aside for the final assembly process, as
shown in Figure 112.
Component Rebuild
Continued on Page 70
47
48
49
50
52
53
47 REDUCTION BAND SERVO COVER SNAP RING.
48 REDUCTION BAND SERVO COVER.
49 REDUCTION BAND SERVO COVER "O" RING SEAL.
50 REDUCTION BAND SERVO PISTON SNAP RING.
52 REDUCTION BAND SERVO PISTON ASSEMBLY.
53 REDUCTION BAND SERVO PISTON SEAL RING.
1. Disassemble reverse/overdrive clutch housing
using Figure 113 as a guide.
Note: It is "Mandatory" that you check the
clutch pack as it is removed. The amount and
thickness of plates will vary, as well as the
diameter. The bottom apply plate is not used
in all models.
Note: Beginning in 2006 for Kia and 2007 for
Hyundai, the overdrive clutch pack changed
to a "partial"single-sided friction stack-up.
Refer to Figure 114 and 115 for the different
versions of the overdrive clutch pack.
OVERDRIVE CLUTCH PACK WITH
DOUBLE-SIDED FRICTION PLATES
All Mitsubishi
Pre-2007 Hyundai
Pre-2006 Kia
2. Clean all reverse/overdrive parts thoroughly
with a good cleaning solution and dry with
compressed air.
3. Inspect all reverse/overdrive parts thoroughly
for any wear and/or damage.
4. Install new inner piston "D" ring seal into lower
groove in reverse/overdrive clutch retainer, as
shown in Figure 116, and lube with small amount
of Trans-Jel®.
5. Install new inner piston "D" ring seal into upper
groove in reverse/overdrive clutch retainer, as
shown in Figure 116, and lube with small amount
of Trans-Jel®.
6. Install new outer "D" ring seal onto the reverse
clutch apply piston, as shown in Figure 117, and
lube with a small amount of Trans-Jel®.
7. Install new outer "D" ring seal onto overdrive
clutch apply piston, as shown in Figure 118, and
lube with a small amount of Trans-Jel®.
8. Install new "D" ring seal onto overdrive clutch
balance piston, as shown in Figure 119, and
lube with a small amount of Trans-Jel®.
9. Install the completed reverse apply piston into
the retainer, aligning the lube holes, as shown
in Figure 120, and ensure that it is fully seated.
10. Install the completed overdrive apply piston
into the reverse apply piston, as shown in
Figure 120, and ensure that it is fully seated.
11. Install the overdrive clutch piston return spring
as shown in Figure 120.
Note: Ensure alignment holes are seated
over the dowels on piston (See Figure 120).
12. Install the overdrive clutch balance piston over
return spring assembly, as shown in Figure 120,
and lay snap ring on top of piston.
13. Compress the return spring assembly with a
spring compressor, install the snap ring into
groove with snap ring pliers, and remove the
spring compressor.
14. Install the overdrive apply plate inside reverse
apply piston, as shown in Figure 121.
Note: Install apply plate with the rounded edge
facing up and the area with no teeth must be
aligned with the lube holes in the retainer, as
shown in Figure 122.
15. Alternate with double-sided frictions and steel
plates, as shown in Figure 121, until you have
installed 4 frictions and 3 steel plates.
Note: Align steel plates so the area with no
teeth are aligned with the lube holes in the
retainer, as shown in Figure 122. Friction
plates should be soaked in proper ATF for
1 hour before assembly.
16. Install the overdrive clutch backing plate, as
shown in Figure 121.
Note: Install backing plate with the rounded
edge facing the friction and the area with no
teeth must be aligned with the lube holes in the
retainer, as shown in Figure 122.
17. Install the selective overdrive clutch backing
plate snap ring, as shown in Figure 121.
168
164 OD CLUTCH BACKING PLATE SNAP RING (SELECTIVE).
165 OD CLUTCH BACKING PLATE (.158" THICK).
166 OD CLUTCH FRICTION PLATES (.072" THK) (QTY VARIES).
167 OD CLUTCH STEEL PLATES (.119" THICK) (QTY VARIES).
168 OD CLUTCH APPLY PLATE (.158" THICK).
179 REVERSE/OVERDRIVE CLUTCH RETAINER ASSEMBLY.
18. Install the overdrive apply plate inside reverse
apply piston, as shown in Figure 124.
Note: Install apply plate with the rounded edge
facing up and the area with no teeth must be
aligned with the lube holes in the retainer, as
shown in Figure 123.
19. Next, install a normal "double-sided" friction
plate, as shown in Figure 124.
Note: All friction plates should be soaked in
proper ATF for 1 hour before assembly.
20. Next, install the "single-sided" plates beginning
with an external spline plate with lining facing
up and alternate with internal spline plates until
you have installed three of each, as shown in
Figure 124.
Note: The area on the external-spline plates
with no teeth must be aligned with lube holes
in the retainer, as shown in Figure 123.
21. Install the overdrive clutch backing plate, as
shown in Figure 124, with the step facing up.
Note: The area on backing plate with no teeth
must be aligned with the lube holes in retainer,
as shown in Figure 123.
22. Install the selective overdrive clutch backing
plate snap ring, as shown in Figure 124.
27. Install the reverse clutch plates beginning with
a steel plate and alternating with friction plates
until you have installed two of each, as shown
in Figure 128.
160
161
Note: Quantity of friction & steels will vary by
model. Friction plates should be soaked in
ATF for 1 hour, prior to installation.
28. Install the reverse clutch backing plate with
the rounded edge towards friction plate, as
shown in Figure 128 and 129.
29. Install the reverse clutch backing plate snap
ring, as shown in Figure 128.
30. Install the clutch compressing tools that are
shown in Figure 132.
Note: The reverse lined plates are "Waved"
and must be compressed as shown to check for
the proper clutch clearance reading.
31. Compress the plates and measure with feeler
gage between snap ring and backing plate, as
shown in Figure 130.
Note: Proper compression can at times be
achieved by hand, as shown in Figure 130, as
most have only 2 friction plates.
32. With the plates compressed clutch clearance
should be 1.6-1.8 mm (.063"-.070").
33. Change the selective snap ring as necessary
using the chart in Figure 131, to obtain proper
reverse clutch clearance.
13. Install the number 3 thrust bearing into the
output planetary carrier in the direction shown
in Figure 142.
14. Install the underdrive sun gear into the output
planetary carrier in the direction shown in
Figure 142, and rotate into position to engage
into planetary gears.
15. Ensure the number 4 thrust bearing (203) is still
in place in the overdrive carrier (202). Refer to
Figure 142.
16. Install the overdrive carrier and the number 4
thrust bearing as an assembly, by rotating into
position, as shown in Figure 142.
17. Install the overdrive carrier retaining snap ring,
as shown in Figure 142, and ensure that it is
fully seated.
18. Set completed planetary gear train assembly
aside for the final assembly process, as shown
in Figure 143.
205
OUTPUT CARRIER
AND RING GEAR
ASSEMBLY
201 PLANETARY RETAINING SNAP RING.
202 OVERDRIVE PLANETARY CARRIER ASSEMBLY.
203 NUMBER 4 THRUST BEARING.
204 UNDERDRIVE SUN GEAR.
205 NUMBER 3 THRUST BEARING.
1. Disassemble the underdrive clutch housing
using Figure 144 as a guide.
Note: It is "Mandatory" that you check the
clutch pack as it is removed. The amount and
thickness of plates will vary, as well as the
diameter. The bottom apply plate is not used
in all models.
2. Clean all underdrive clutch housing parts with
cleaning solution and dry with compressed air.
3. Inspect all underdrive clutch housing parts for
any wear and/or damage. Replace as necessary.
4. Install new underdrive clutch inner "D" ring
seal in underdrive clutch housing, as shown in
Figure 145, and lube with a small amount of
Trans-Jel®.
5. Install new underdrive clutch outer "D" ring
seal onto underdrive clutch apply piston, as
shown in Figure 146, and lube with a small
amount of Trans-Jel®.
6. Install new "D" ring seal onto the underdrive
clutch balance piston, as shown in Figure 147,
and lube with a small amount of Trans-Jel®.
12. Install the underdrive clutch plates beginning
with a steel plate and alternating with friction
plates, as shown in Figure 150, until you have
installed four of each (Quantity Varies).
Note: When installing the steel plates, align
them so that the places with no teeth will be
aligned with the lube holes in the housing, as
shown in Figure 149.
Note: Friction plates should be soaked in
ATF for 1 hour before installation.
13. Install the underdrive clutch backing plate, as
shown in Figure 149 and 150, with the rounded
edge towards the friction.
14. Install the underdrive backing plate selective
snap ring, as shown in Figure 150.
15. Install the clutch compressing tools, as shown
in Figure 151 and 153.
Note: Underdrive lined plates are "Waved"
on all models and must be compressed as
shown in Figure 153 to achieve the proper
clutch clearance reading. The underdrive
friction plates were changed in May, 2000
to a friction with a less perceptable wave,
but must still be compressed.
16. Compress the plates and measure with feeler
gage between snap ring and backing plate, as
shown in Figure 153.
17. With the plates compressed clutch clearance
should be 1.6-1.8 mm (.063"-.071").
18. Change the selective snap ring as necessary,
using the chart in Figure 152, to obtain proper
underdrive clutch clearance.
1. Clean and inspect the underdrive clutch hub
thoroughly.
2. Install the number 2 thrust bearing onto the
underdrive clutch hub, in the direction shown
in Figure 156, and retain with a small amount
of Trans-Jel®.
3. Set the completed underdrive clutch hub aside
for the final assembly process, as shown in
Figure 157.
116
117
1. Disassemble the differential assembly using
Figure 159 as a guide.
2. Clean and inspect all of the differential parts
thoroughly. Replace as necessary.
3. If bearing service is required, the tools shown
in Figure 158, or their equivalant, and suitable
hydraulic shop press will be necessary.
Continued on Page 91
DIFFERENTIAL REQUIRED SPECIAL
TOOLS FOR BEARING SERVICE
116 NUMBER 2 THRUST BEARING.
117 UNDERDRIVE CLUTCH HUB.
7. Measure the backlash between the side gears
and pinion gears, as shown in Figure 162.
8. If backlash is out of specification, as shown in
Figure 162, select a spacer from the chart and
re-measure the backlash.
Note: Adjust until the backlash is equal at
both side gears.
9. If gear service was necessary, torque the ring
gear bolts to 135 N·m (100 ft.lb.), as shown in
Figure 163, using a criss-cross pattern.
10. Set completed differential assembly aside for
the final assembly process (See Figure 164).
10. Press a new tapered roller bearing onto direct
planetary carrier, as shown in Figure 174, using
the proper adapters.
11. Install new bearing cups into the driven transfer
gear, as shown in Figure 175, using the proper
adapters.
12. Install the transfer driven gear/direct ring gear
onto the direct planetary carrier, as shown in
Figure 176, and rotate into position to engage
planetary pinions.
13. Install the second tapered roller bearing onto the
direct planetary carrier, as shown in Figure 176.
17. Install the number 10 thrust bearing race and
the number 9 thrust bearing, as shown in
Figure 180.
18. Install the direct planetary carrier roller bearing,
as shown in Figure 180.
19. Install the locking nut as shown in Figure 180.
20. Tighten the locking nut to the specified torque
using the special spanner wrench, as shown in
Figure 181. Loosen the locking nut 1 complete
turn and once again torque the locking nut to
170 N·m (125 ft.lb.).
21. Stake the locking nut in place and set completed
direct planetary gearset aside for final assembly,
as shown in Figure 182.
1. Disassemble the direct clutch housing using
Figure 183 as a guide.
Note: It is "Mandatory" that you check the
clutch pack as it is removed. The amount and
thickness of plates will vary, as well as the
diameter. The bottom apply plate is not used
in all models. Refer to Page 103.
DIRECT CLUTCH HOUSING exploded view
2. Clean all direct clutch parts thoroughly and dry
with compressed air.
3. Inspect all direct clutch parts thoroughly for
any wear and/or damage. Install new bushings
as necessary using the proper driver.
Continued on Page 101
540
541
550551
549
542
543
552
544
553553
545
547
546
554
548
REAR VIEW
555
556
540 DIRECT CLUTCH BACKING PLATE SELECTIVE SNAP RING.
541 DIRECT CLUTCH BACKING PLATE.
542 DIRECT CLUTCH FRICTION PLATES (QTY VARIES).
543 DIRECT CLUTCH STEEL PLATES (QTY. VARIES).
544 DIRECT CLUTCH WAVE PLATE.
545 DIRECT CLUTCH APPLY PLATE (NOT USED ALL MODELS).
546 DIRECT CLUTCH RETURN SPRING RETAINER SNAP RING.
547 DIRECT CLUTCH RETURN SPRING RETAINER.
100
548 DIRECT CLUTCH RETURN SPRING RETAINER "D" RING SEAL.
549 DIRECT CLUTCH APPLY PISTON RETURN SPRING.
550 DIRECT CLUTCH APPLY PISTON.
551 DIRECT CLUTCH APPLY PISTON OUTER "D" RING SEAL.
552 DIRECT CLUTCH HOUSING INNER "D" RING SEAL..
553 DIRECT CLUTCH HOUSING BUSHINGS (2 REQUIRED).
554 DIRECT CLUTCH HOUSING.
555 NUMBER 11 THRUST BEARING.
556 NUMBER 12 THRUST BEARING RACE.