Ford Exploder 8.8 rear axle....

I believe you have to shorten the 8.8, but a lot of folks do shorten the 8.8 because it already has disc brakes

I'm lookin at the Ranger rear end now. From 90-92 it's a tick shorter drum to drum. 56 1/2". I think the A body is like 57 5/8". The Ranger rear would bolt in and work well with the perch change, I believe. "I may" have to find out.