Is a TH400 with a 203 output shaft a different length than a TH400 with an NP205?

[handloader90]

May be a stupid question. Quick glance through google didnt answer the question.

Currently have a TH400/NP203 in a truck that I just got.

I've got a TH400/NP205 sitting in the garage and wanted to know if I can just bolt the 205 up with the TH400/NP205 adapter that's currently attached to it.

I have the correct length drive shafts for everything so that wouldn't be an issue.

 

[Vombrown]

Yessir, should just swap right out. I think the boot for the shifter will even work.

 

[Hogback Fabrication]

100% not a bolt in.

There are a bunch of different output shafts for TH400. Within the 32 spline outputs, the 203 version is the shortest and doesn't work with an NP205 alone.

 

[sweetk30]

Yessir, should just swap right out. I think the boot for the shifter will even work.

if it was a th350 this would be correct for the tail shaft length .

otherwise look here .

 

[454Sub]

Yes it will bolt up. But no it will not work.

Getting a th400 is a super simple process. It doesn't require anything except a 12pt socket that I'm 90% sure is a 13mm. Or a 12mm.

 

[Vombrown]

AHHH NOW I REMEMBER! I was about to say that I just helped a guy with this exact swap a month or so ago on a K-5. Then I remembered we DID use a stub shaft. Not sure where he got it but it made it a bolt in.

 

[Hogback Fabrication]

AHHH NOW I REMEMBER! I was about to say that I just helped a guy with this exact swap a month or so ago on a K-5. Then I remembered we DID use a stub shaft. Not sure where he got it but it made it a bolt in.

Care to elaborate on what that was or where it came from?

 

[Vombrown]

Care to elaborate on what that was or where it came from?

No idea but I can ask where he got it.

 

[handloader90]

Thanks for the info fellas. I'll leave the 400/203 alone for the time being.

I've got a 400/205 and 350/205 at my disposal so I'll get around to swapping the entire trans/t-case out a little later down the road.

 

[imiceman44]

Thanks for the info fellas. I'll leave the 400/203 alone for the time being.

I've got a 400/205 and 350/205 at my disposal so I'll get around to swapping the entire trans/t-case out a little later down the road.

When you are ready to do this swap I will give you the warn winch bumper for your th400/203