Borg Warner Super T10 4 Speed Mainshaft 32 Spline ST-10 Transmission (Ankeny)

I have for sale the main shaft from a Super T10 4 speed transmission.
I believe this particular one was from a 2.
43 first gear, 1977 transmission.
Although, I don't believe it makes any difference other than the 32 splines.
It looks pretty good to me.
However, I do not represent myself to be a transmission expert.
.
.
just somebody who has worked on a few as need be.
$139