In April of 2005 Dana made major design changes to the RST40 and RST41model axles. The design changes impact
service parts and the information contained in this bulletin will help show the design variations between the original design
and the latest design. Some of the parts in areas that were changed are common to the popular RS404 family axles.
These parts are readily available at PDC’s and OEM Dealerships.
The areas of impacted area of design change are outlined below and detailed in specific pages of the bulletin.
RST40 SERVICE PARTS LISTING – (OLD vs. NEW) page 5
This bulletin contains product information.
na Corporation is not committed or liable for canvassing existing product.
Da
IB-0510R3
1
Page 2
PINION BEARING CAGE CHANGE:
Original Design Cage Shims:
Dana P/N: 107567, 107568, 107569, 107570, 107571
RST40 Product Design Changes – ABIB-0510R3
PINION DESIGN CHANGE:
NEW INNER PINION BEARING:
OLD INNER PINION
NO CHANGES TO
DRIVELINE YOKE!
Note 1:
INNER PINION BEARING CHANGE:
Shown below are specific changes that impact the INNER PINION BEARING and PINION BEARING CAGE. The new
production pinions have been redesigned and requires the use of a new inner pinion bearing. As noted in the chart on
page 3 of this bulletin, the inner pinion bearing is now included with the Spicer service gear sets for these models.
Newer production RST40, RST41 models are built with a new design drive pinion that now
has a step design and requires the use of the 129562 inner pinion bearing. Do not use the
old 45460 Inner Pinion Bearing with this gear set – it will not reassemble correctly.
BEARING:
Spicer #045460
(industry# 72200C)
No Longer Used after
ST
April 1
2005.
Spicer #129562 (industry# NP523912)
PINION BEARING CAGE CHANGE:
The new RST40 carrier and cap design is new and unique as explained on page 4 of this bulletin. The mating pinion-
earing cage, capscrews and shims were all upgraded to that which is common to the RS404. The carrier’s made after
b
April 1, 2005 (casting#130945) have metric threaded pinion bearing cage holes, and require the use of the 210115
capscrew. Additionally one common cage/cup is used for all ratios. Refer to the part numbers in the chart below.
•••• New Common Design Cage/Cup: Dana P/N: 129768 – Casting#127481C (all ratios)
•••• New Common Design Cage Capscrew: Dana P/N: 210115 – 40mm – M14X2-6G Thread
•••• New Common Cage Shims: Dana P/N: 127595, 127596, 127597, 127598, 127599
Original Design Cage/Cup: Dana P/N: 128373 – Casting#127038R (3.55 & 3.70 ratios) Note 1
Original Design Cage/Cup: Dana P/N: 128372 – Casting#107495R (all other ratios)
Original Design Cage Capscrew: Dana P/N: 113325 - 1.50” – 9/16”-12 Thread
When changing any BEFORE April 2005 RST40 units having a 3.55/3.70 ratio, or replacing any original
3.55/3.70 gearing with the NEW 3.55/3.70 gear sets, the correct Cage/Cup Assy must be used. The NEW
Pinions were changed in overall length affecting the stack up in these ratios, to correct this; you must use the
128372 cage/cup assy. No other ratios are affected.
is bulletin contains product information.
Th
Dana Corporation is not committed or liable for canvassing existing product.
2
Page 3
UPGRADED GEAR/PINION KITS:
513869
513870
2.93
130947
130949
41/14
16"
511148
511149
511150
3.36
131844
131816
37/11
16"
511151
511152
511153
3.90
131848
131819
39/10
16.5"
511154
511155
512158
4.88
131852
131822
39/8
16.5"
512159
512160
512161
6.17
131857
131855
37/6
16.5"
512162
511148
511149
511150
511151
511152
511153
511154
511155
512158
512159
512160
512161
512162
GEAR SET P/N
RING GEAR
SIZE
TEETH
GEAR P/N
P/N
RST40 Product Design Changes – ABIB-0510R3
GEAR/PINION and RING GEAR NUT/BOLT CHANGE:
The actual pinion design change was described on page two of this bulletin. In addition to that change the ring gear
fasteners were also commonized to use the same fasteners as the RS404. When using the replacement gear/pinion kits
for any “Original” design axle or any axles built with the original design gearing you must use the correct nut and bolt kit
during reassembly. Refer to the charts and kit numbers below.
•••• SERVICE KIT PART NUMBERS WERE NOT CHANGED
•••• KITS NOW INCLUDE INNER PINION BEARING
•••• IDENTIFY AXLE DESIGN BY PINION or GEAR PART NUMBERS
•••• AXLES BEFORE APRIL 1, 2005 IN 3.55 & 3.70 RATIOS, REQUIRE CAGE/CUP UPGRADE TO
PART-NO. 128372 (REFER TO NOTE 1 AT THE BOTTOM OF PAGE 2).
SPICER
S
ERVICE
GEAR SET
P/N
NOTE 1: The inner pinion bearing is now included in a
March 1st 2005.
RATIO
2.6413187413187337/1416"
3.0813184213181437/1216"
3.2513184313181539/1216"
3.5513184513181739/1116"
3.7013184613181837/1016"
4.1113184913182037/916.5"
4.3313185013182139/916.5"
5.2913185313182337/716.5"
5.5713185413182439/716.5"
6.5013185813185639/616.5"
PINION P/NGEAR P/N
OLD
SERVICE
RATIO
OLD
3.0812802512998737/1216"
3.2512788612998839/1216"
3.3612004512998937/1116"
3.5510986212999039/1116"
3.708801312999137/1016"
3.909974612999239/1016.5"
4.118637212999337/916.5"
4.338637412999439/916.5"
4.888637813087339/816.5"
5.298638013087437/716.5"
5.578688013087539/716.5"
6.1713087113087237/616.5"
6.508688212916039/616.5"
PINION
T
Dana Corporation is not committed or liable for canvassing existing product.
INNER
PINION BRG
NOW IN KITNO. TEETH
RING
GEAR
SIZE
••••The ring gears in the kits to the left
are designed to use bolt #129686 and
nut# 126216. These are in Spicer
129562
(
note 1)
Not/Bolt Kit: 508652.
••••On axles manufactured AFTER April
1st, 2005 use Nut/Bolt Kit: 508652.
• If you order any of these Gear/Pinion
•
•
•
kits and rebuilding an axle with a
“original” design ring gear, you must
ll of these service gear sets effective
NO.
also get Spicer Nut/Bolt Kit: 508652
••••Shown in the chart at the
left are the “Original” gear
part numbers and pinion
part numbers, which are No
Longer Made.
••••These original ring gears
use Bolt# 67586 and Nut#
60600 which are sold in
Spicer Nut/Bolt Kit: 70745
his bulletin contains product information.
3
Page 4
RST40 Product Design Changes – ABIB-0510R3
CARRIER & CAP SERVICE KI
TS:
KIT – CARRIER & CAP
KIT – CARRIER & CAP CONVER
SION KIT
CARRIER & CAP CHANGE:
The new RST40 carrier & cap is unique in its design. The casting number located on the outside edge of the carrier
makes it visibly easy in identifying the old and new design carriers. Two new Carrier/Cap service kits have been released,
part numbers 514063 and 514064. The 514063 kit listed below is the standard Carrier/Cap Service Kit for models built
AFTER April 1, 2005. The 514064 kit is a “Carrier/Cap Conversion Kit” that includes other parts needed to convert
original design models.
•••• New Design: Dana Kit P/N: 514063 - Casting# 130945
•••• New Design: Dana Kit P/N: 514064 - Casting# 130945
Original Design: Dana Kit P/N: 211219 - Casting# 127046
SPICER P/N: 514063
1-130946 Carrier/Cap
CARRIER TO HOUSING FASTENERS:
The new RST40 carrier and cap is designed with thick flange bosses, which requires different housings fasteners
ompared to the old design. The individual fasters and service kits for both the OLD and NEW designs are listed below.
• For service use Axle Housing Hardware Kit: 511600
This bulletin contains product information.
ana Corporation is not committed or liable for canvassing existing product.
D
4
Page 5
RST40 Product Design Changes – ABIB-0510R3
COMPREHENSIVE SERVICE KITS LISTING
-
RST40
514061
514062
514059
514060
216225
514063
514064
129768
210115
508652
127595
127596
127597
127598
127599
514260
Carrrier w/ No
511115
512830
512828
512829
511169
211219
128372
113325
70745
107567
107568
107569
107570
107571
511600
Listed below are available RST40 service kits for the original design models (BEFORE 4.1.05) and new parts for models
built (AFTER 4.1.05). A service carrier listing and common service parts list is also referenced.
SPICER P/N
RST40 SERVICE KITS UNIQUE FOR MODELS BUILT
BEFORE 4.1.05