
ADVANCE ADAPTERS INC. P/N: 50-6202
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 711062-16
Paso Robles, CA 93447 PAGE 1 OF 3
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 04-04-13
FORD NP435 4SPD TRANSMISSION
TO T OYOTA L/C 4SPD TRANSFER CASE
KIT CONSISTS OF:
No. Qty Part No. Description
1 1 51-7510 FORD NP435 4SP ADAPTER CASTING
2 1 51-7800 TOYOTA L/C-T18 4 SP CASTING
3 1 52-0226 TOY LC 16SP.X NV 23TH INTERNAL
4 **1** 52-3800 Modified NP435 X DANA 300-23 MAIN SHAFT
52-3800 must be shortened 1" on the 23Spline end before shipping.
5 1 716306 L/C OUTPUT BEARING (NO SEAL)
6 1 716507 TOYOTA T.C. GASKET
7 1 716736 O-RING 157
8 6 723704 LOCK WASHER 3/8" ZINC
9 6 723721 H.H.C.S. 3/8"-16 X 1" PLATE GR5
10 2 724328 7/16"-14 X 1-1/4" H.H.C.S.
11 3 724329 7/16"-14 X 5-1/2" LG H.H.C.S.
12 4 725004 HEX NUT 1/2"-13 PLATED
13 4 725040 STUD BOLT 1/2"-13 X 2.0 LG
14 1 728701 NUT-NYLON LOCK 7/8"-16
15 1 728702 SPECIAL FLAT WASHER
OPTIONAL ITEMS:
Qty Part No. Description
1 716004 REAR MOUNT
1 716003 CROSSMEMBER
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components will
void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly recommend
that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components. We recommend that
a service manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are normally available at
automotive dealerships and parts stores.

ADVANCE ADAPTERS INC. P/N: 50-6202
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 71 1062-16
Paso Robles, CA 93447 PAGE 2 OF 3
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 06-01-01
FORD NP435 4SPD TRANSMISSION
TO T OYOTA L/C 4SPD TRANSFER CASE
FORD NEW PROCESS NP435 4 SPEED
The NP435 transmission can be identified by a case length of 10-3/4" and a case casting number of C95711 or C96391,
or C13894. The aluminum shift cover has a casting number of C11240, C97233 or C994569. The P.T.O. opening is on
the right hand side at the center of the case and the shift cover is mounted to the top of the case with 8 bolts. The new
shaft furnished with this kit must be carefully compared to the original shaft removed from your transmission. The NP435
transmission required for this kit is from Ford F100, F200 & F300 1 ton trucks. The front bolt pattern on the Ford
transmissions will have an 8-1/2" x 6-1/4" bellhousing pattern with a bellhousing pilot diameter of 4.848".
The assembled length of the transmission and adapter will vary depending on which installation you are doing.
When assembling the gears onto the new main shaft, make sure that all gears have the proper end clearance required for
oiling. Make sure that all transmission assembly work is done by a competent mechanic. All surfaces must use gaskets
to prevent oil leakage.
When bolting the adapter to the main transmission case, you must use two studs in the lower two holes of the adapter.
A slight modification may be necessary to obtain the proper clearance around the lower bearing cover of the stock
transmission. We have come across to different bolt patterns on the back side of the transmission case. The difference
is between two wheel and four wheel drive applications. If the transmission was originally used in a four wheel drive
vehicle, then the lower two holes will be spread further apart. If the transmission was originally used in a two wheel drive
vehicle, then the lower two holes will be in line with the upper two holes.
When installing the new transfer case adapter, make sure that the coupler and the output shaft do not bottom out. We have
found on occasion that a transmission output shaft may be slightly longer than we have allowed for and when coupling
into our new spud shaft, we find a small amount of interference. The adapter housing and spud shaft must be assembled
to the back of the transmission without interference. DO NOT FORCE THE NEW TAILHOUSING ONTO THE
TRANSMISSION. If assistance is needed, please feel free to call the number listed above.
The total overall length of the transmission and adapter will be longer than your original transmission and on most
conversions, will require driveshaft modifications. The adapter has provisions for mounting an optional cross member
mount as illustrated. Depending on the exact vehicle that this transmission is being installed into, you may require
modifications to the clutch linkage, overdrive shifter bracket, and transfer case control linkage.
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components will
void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly recommend
that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components. We recommend that a service
manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are normally available at automotive
dealerships and parts stores.

ADVANCE ADAPTERS INC. P/N: 50-6202
P.O. Box 247, 4320 Aerotech Center Way Old Part No: 711062-16
Paso Robles, CA 93447 PAGE 3 OF 3
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 04-04-13
FORD NP435 4SPD TRANSMISSION
TO T OYOTA L/C 4SPD TRANSFER CASE
51-7500
DVANCE
DAPTERS
CAUTION:
When installing a new transmission main shaft into the new process case you must make sure
the input shaft is properly pre-loaded for proper bearing and gear clearances. We have
experienced gear seizure in the 3rd area of the transmission shaft due to the improper
clearance from the front input shaft. The 3rd gear to input shaft clearance must be .010"
to .015" in order to avoid severe damages. If this clearance is not obtained, you will find
the input shaft dragging on 3rd gear and creating excessive heat that will cause gear seizure.
Refer to ford service manual for specific instructions on transmission assembly procedures.
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components
will void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly
recommend that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components. We
recommend that a service manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are
normally available at automotive dealerships and parts stores.