looking for rear diff for 63
 

Looking for a rear differential (full rear end to bolt into my 63 C10)
Would prefer a posi set up.
Anything out there?

Re: looking for rear diff for 63
 

I have a 64 cleaned and painted 3.73 Posi I didn't use, put a 72 fug lug under truck after all. Problem is....I'm in Wyoming

Re: looking for rear diff for 63
 

Ya know that 63 rear end is a odd ball kinda. backing plates are pressed on so it's hard to do a disc convert if ya ever decide to and it's impossible to find good used or new axles cause their 17 spline. My 63 axles had bad wear spots at the bearing surface. They all do. It's a bad design. IMO. 64 thru mid 71 will fit. I used a 66 for mine. everything was the same except the panhead bar. I made the old fit. no big deal

Re: looking for rear diff for 63
 

A '63 to early '70 12 bolt will be basically the same. The '63 & '64 12 bolt are the same except fopr the backing plates. The '65-'70 have a different panhard bar but that's nothing a little tweak of the bar can't fix. Also the '65 and up 12 bolt will have the 30 spline axles.

Re: looking for rear diff for 63
 

Thanks for the correction Capt.

Re: looking for rear diff for 63
 

Great info. Where do the rears start to get wider?

Re: looking for rear diff for 63
 

Late '70........that is why I said '63 to early '70. In '71 the C10's started receiving the 5 x 5" wheel stud pattern but of course the K5's and K10's still had the 6 x 5.5" wheel stud pattern.