SBC front slip yoke

[4EyedTurd]

I plan on heading to the junkyard to find a slip yoke for a Chevy T5, from searching I need a 27 spline yoke. From what I can find looks like Th-350 and 400 are the same spline, are they all the same?

[junk racing]

should be, powerglides are also the same.

[AMJ]

everything ive read says the th400 has a bigger output shaft than the pg or th350

[Chambers]

Could have sworn that the TH400s are 32 spline. TH350/4L60 etc should be 27 spline.

[homealone]

T-5, some Muncie 4spds, Later Powerglide, Turbo 350, 200R4 ,700R4, 4L60 are 27 spline

Turbo 400, 4L80, and other Muncie 4spds are 32 spline

Early Powerglides (cast iron) are 16 spline.