just an update here lol
I found a double cardan shaft out of an 87 B2 in the local you pull it. I have to get it out yet, but measurements on the vehicle appear right from flange to flange. That truck was hard to see junked though... carbed 5.0 swap, 3" body lift and odds an ends... had a set of mustang gt buckets in it too.
So far Ive put 4K on the clock, and the cv shaft is still holding. I had to replace a blown fpr the other day.... and the starter initialy, but for a 450 dollar truck..... id say i did good. Ill take some pics for you guys tonight.