There were turbo 350's with both a short and long tail shaft that fit a chevy. Long shaft were common from 71-76.
No it will NOT interchange. The 350 and 400 turbo are actually VERY different transmissions.
c4
6
9 inch tail shaft
I have a 350 turbo in mine Just about any transmission will work! Powerglide, Turbo 350 (lockup or non) or Turbo 400, even 700r4.
Probably a Turbo 350 short tail.
yes
yes
If you were to disassemble the entire transmission, the last part to come out would be the tail shaft.
Probably a turbo 350.
3/8-16x1 1/4
no it will not fit at all