[jbon64]

did you check side to side front to back measurments on the original rear ? it's possible that the rear was a bit out of align from the factory to begin with . factory specs in the 60's i assume were pretty lenient to begin with , and probably more so for a truck . another thing to maybe check would be to see if one of the trailing arms are bent .

from one carrier vet to another (cv43) i'm sure you'll track it down