This adapter kit will adapt the reduction housing of the GM NP203 to a Land Cruiser 10 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 1963-73 10 spline transfer cases. The drive gear has 10 internal splines and a diameter of 1.375”. There cases are equipped with a vacuum style shifter. Additional information can be obtained in our Land Cruiser Conversion Manual, TLC001.
The NP203 originally coupled to the GM 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.