This adapter kit will adapt the reduction housing of the GM NP203 to a Land Cruiser 16 spline transfer case. The adapter length is 1.525” in length and is made from 356 T-6 heat treated aluminum alloy. The adapter kit includes an adapting casting, NP203 to Landcruiser output shaft, vent assembly, sealed bearing, gasket, fastening hardware, and adapter instructions.
This adapter assembly fits 1974-78 16 spline transfer cases. The drive gear has 16 internal splines and a diameter of 1.375”.
The NP203 originally coupled to a SM465, TH400, and TH350.This full-time, cast iron case is made up of 4 housings. It is a chain-driven case with a front housing using helical cut gears offer a 2 to 1 gear ratio. This assembly was used in 1971-79 vehicles.