Our adapter kit for the GM TH400 3 speed automatic transmission to Bronco Dana 20. The adapter kit will include a new TH400 output shaft, adapter plate, snap ring, gaskets, seal, fastening hardware and adapter instructions.
The adapter assembly will fit any 1966-77 Bronco Dana 20 transfer case.
This adapter kit is designed for exclusive use with the GM TH400 automatic transmission. The TH400 has a case length of 24.250" and a "Texas-shaped" oil pan underneath it. The factory output shaft has a spline count of 32 spline and had various output stick-out lengths / 1.5", 2.5", 4.5" & 5" stick-outs.