TH350 X NP205 10SPL. COUPLER

Advance Adapter

This coupler / power sleeve kit will adapt a TH350 4wd automatic transmission to a GM NP205 transfer case with a 10 spline male input shaft. The conversion coupler kit will require the factory TH350 to NP205 adapter housing or our 50-5302 kit.

The adapter kit includes a 27×10 spline conversion coupler / power sleeve, seal and adapter instructions. This kit does not include the adapter housing seals

Transfer Case

The NP205 originally coupled to a SM465 4 speed manual transmission has a male 10 spline input. The NP205 is a part time, cast iron transfer case with a figure eight front bolt pattern configuration. This assembly was used in 1971-79 vehicles.

Transmission

This adapter kit is designed for exclusive use with the 4wd GM TH350 automatic transmission. This GM automatic was commonly found stock in vehicles from 1969-81. The Turbo Hydramatic 350 three speed automatic is one of the most popular transmissions available in GM 4×4 trucks. The stock 4wd output shaft protrudes from the back of the case approx 1”. 1980-81 model TH350 4wd output protrudes out 2.750”. And this TH350 also uses a lock-up torque convert, and was always used with an aluminum transfer case. We recommend the 1980-81 model not be used.

Bill Of Materials

• COUPLER-GM 27 SPLINE TRANS X GM 10 SPLINE T/C. COUPLER ONLY AND IS USED IN 50-5304 KIT. / 52-9501
• SEAL-FOR GM COUPLER SLEEVE / 716727