Advance Adapter
The GM TH350 3 speed automatic transmission adapter to the Toyota Truck gear driven transfer case is 3.50”. The adapter material is 356 T-6 heat treated aluminum alloy. Our adapter kit will include a adapter housing, new TH350 output shaft, 27x21 coupler, nylon bushing, cover plate, gaskets o-ring, seal, fastening hardware and adapter instructions.
Note: The 4WD TH350 stock output shafts are getting hard to come by, which has increased their price. Unfortunately, we have had to adjust the kit pricing. Check with your local transmission shop to see if they have a shaft in stock for less than $120.00. If so, you can order this kit minus the output shaft. P/N 50-5702
Transfer Case
The adapter assembly fits the Toyota Truck 21 spline gear driven transfer cases. This transfer case has a male 21 spline input shaft and can also be identified by 7 bolts attaching the tailhousing to the transfer case.
Transmission
This adapter kit is designed for exclusive use with the GM TH350 automatic transmission. This GM automatic was commonly found stock in vehicles from 1969-81. It was used in both pickups and car applications. The TH350 has an aluminum, 1 piece case and is 21.5” in length.
Bill Of Materials
50-5700