Our Advance Adapter kit will allow you to adapt a GM TH350 3 speed automatic transmission to the GM NP208 transfer case. The adapter housing is 1.8” in length and is manufactured from 356-T6 heat treated aluminum alloy. The adapter kit includes an adapter housing, new 32 spline TH350 output shaft, transmission dipstick, kickdown cable, gasket, o-ring, fastening hardware and adapter instructions.
NOTE: Our adapter kit requires a factory GM 700R4 4wd housing. GM p/n 15629188.
The GM NP 208 / 241 transfer cases are chain driven units with a cast aluminum case. When originally coupled to the 700R / 4L60 / 4L60E the NP208 / 241 featured a 27 spline female input shaft, and were used in GM full size truck line-up in models years 1981-2000.
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 aluminum, 1 piece case and is 21.5” in length.