208 interchange question

[bobracing]

Back ground.
88 Blazer I want to put 3/4 axles under
donor rig is an 81 3/4 Sub with a 4sp.

Are the 1/2ton and 3/4 ton slip yokes the same on 208s?
Are the spline count between auto and manual trans outputs different?

I'd like to use the 3/4 drive shafts and if the spline count is the same, just cutting down the back should work.

How about the front output yoke 3/4 ton yoke, slip onto the 1/2 208?
Guessing the cases are the same? am I wrong?

[White trash]

Input splines will be different. 700r4 and th350 are 27 spline the 465 will be 32 spline if I'm thinking right.. Otherwise it should all be the same.

[79chevy39.5's]

auto thats 32 spline also would be th400
it should be a flange front output but all will be 1310 even my 1 ton is