Advance Adapters 50-3702 User Manual
Page 2
ADVANCE ADAPTERS INC.
P/N: 50-3702
P.O. Box 247, 4320 Aerotech Center Way
New Item: (1994)
Paso Robles, CA 93447
PAGE 2 OF 3
Telephone: (800) 350-2223
Fax: (805) 238-4201
Page Rev. Date:
09-07-94
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.
GM TH350 3 SPEED AUTOMATIC
The General Motors TH350 has a case length of 21-1/2", 13 bolts for holding the oil pan in position and is available
in two different engine to transmission bolt patterns. The case is available with a Chevy bolt pattern that has the top
two holes 8-1/4" apart or in a Buick bolt pattern that have the top two holes 7" apart. The rear side of the transmission
case should have a square bolt pattern that uses 4 bolts. There are several various lengths of output shafts that the
transmission have been furnished with and you must make sure the proper shaft has been installed into the transmission
for use with the Advance Adapter transfer case kit. The speedometer gear is normally located in the tailhousing, but
when adapting it to the transfer case, the location will change to the back side of the transfer case. The rear
transmission support is located in the main case just forward of the tailhousing connection. This can be used for
supporting the crossmember on some installations, but most our kits provide support on the new adapter housing.
When installing the new transfer case adapter, make sure that the coupler and the output shaft do not bottom out.
When assembling the adapter housing to the transmission case, we have provided you with a new square-type "O"
ring seal to prevent fluid leakage. This seal is a stock GM item that is used on all TH350 installations.
If you have selected a transmission that has the old style modulator, then we recommend the use of the Advance
Adapters adjustable modulator, Part No. 716010. This will also allow for additional driveshaft clearance.
All installations will require the use of a transmission cooler. The cooler can be either installed in the radiator or a remote
location is acceptable. The transmission shift control can either be a Hurst floor mounted type shifter or sometimes
the existing column shift can be modified on certain applications.
TH350 TO TOYOTA 4WD T/C 26T INPUT
1987 & UP TOYOTA TRUCK 4WD VEHICLES