th400 spline count

chevy_mud_84 · Nov 4, 2005

what would be the spline count on a th400 thats coming out of a 1980 fs chevy 4x4 with a 205 attached to it??

gauder · Nov 4, 2005

I believe it's 32.

4X4HIGH · Nov 4, 2005

Definately 32 spline.

TX_GLADIATOR · Nov 4, 2005

mine was 32

sweetk30 · Nov 4, 2005

32 spline. but just for your futer info needs some 2x4 versions came with 27 spline when thay were getting rid of supplys.

4X4HIGH · Nov 4, 2005

sweetk30 said:
32 spline. but just for your futer info needs some 2x4 versions came with 27 spline when thay were getting rid of supplys.

Those were TH375's and not TH400's

dremu · Nov 4, 2005

4X4HIGH said:
Those were TH375's and not TH400's

Never heard of a 375 ... is that a typo for 475? Heard of those in motor homes or something.

-- A

4X4HIGH · Nov 5, 2005

dremu said:
Never heard of a 375 ... is that a typo for 475? Heard of those in motor homes or something.

-- A

Nope, a TH375 was nothing more than a light duty TH400 but with 27 spline output and some other internal differences.