L6/SBC/BBC/Trans/Driveshaft/Crossmember Swap Matrix

[jcwren]

Originally Posted by jgrote

Remember that TH350's came in long and short output shaft. That will obviously make a difference. IDK which is the same length as the 3 speed. I know the TH350 short shaft that I put in my 55 sedan was a little longer than the 3 speed I took out. I had to get the DS shortened about an inch IIRC.

The 6" tail shaft version is 27 11/16", the 9" is 30 11/16", and the 12" is 33 27/32".

I see posts where people say the Saginaw is the same length as the 6" version, but I haven't found anything that actually shows a specified length.