driveshaft question: length and interchange

[benoit454]

I was wondering about 73-87 2wd short bed driveshaft lengths and interchange. I had a 76 with a 3 on the tree saginaw, and it had a 1 piece longer DS that would be the correct length for a 2wd short tail th350 since they ended up being same overall length between the th350 shorty and the 3 on the tree saginaw.

Well would the end of the ds slip yoke be the same?

What other DS's would work? Would the 2wd sm465 work?

Kinda wondering what driveshaft I could look for from a stock truck as a direct bolt in for a short tail th350.

My dad has an 84 with a long tail th350, and I'm thinking it might be easier to find a short tail th350 and longer DS. Also if someone who has a 3 on the tree saginaw 2wd swb, or a short tail th350 in the swb 2wd could you get me a measurement?