TH350

TH350

Adapting the TH350

 

There are 3 versions of TH350 output shafts, all are 27 spline:

 

Output shaft sticks out ~7/8” from the back of the case: This is the most common version and is the output that came mated to either an NP203 or NP205 transfer case.

 

How to use with 203/205 doubler Use factory TH350/NP203 adapter, very common
How to use with Magnum underdrive system New 1” thick adapter from ORD
How to use with NP205 alone Use factory TH350/NP205 adapter and drive sleeve, these parts still available new as of 2014

 

 

Output shaft sticks out ~2-1/2”: This one was used with NP208 transfer cases in the early 80’s.

 

How to use with 203/205 doubler Drill/tap six bolt transfer case pattern into face of NP203, plug up stock holes and make a tab to hold down the idler shaft
How to use with Magnum underdrive system Magnum box bolts up as is, no changes
How to use with NP205 alone No option, output shaft has to be changed

 

 

2WD TH350 output shafts are not useful for 4WD applications, the output shaft needs to be changed.

 

Below are some images of the TH350 to aid in identifying:

TH350

Turbo 350

TH350

TH350

TH350 length