Okay, I have the parts all up on the bench - diff, axle shafts, drive plates.
Beyond a little rotaional play, I am not seeing a problem with the drive plates. Am I missing something?
The diff still looks okay - good gear contact pattern, no obvious source of noise.
The birfs (sp?) both...
1991 80 - I bought this truck last fall with 200,000+ miles on it (I know, just broke in...) It had a pretty good "clunk" when switching back and forth between drive & reverse and accelerating/de-accelerating. I had my father-in-law get in the truck and switch it back and forth between R & D...