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Old 12-26-2015, 09:30 PM   #1
63frankintruck
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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?
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Old 12-26-2015, 10:50 PM   #2
chevykevy
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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
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Old 12-26-2015, 11:45 PM   #3
frankslagoon
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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
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Old 12-27-2015, 12:00 AM   #4
Captainfab
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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.
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Old 12-27-2015, 12:39 AM   #5
frankslagoon
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Re: looking for rear diff for 63

Quote:
Originally Posted by Captainfab View Post
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.
Thanks for the correction Capt.
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Old 12-27-2015, 09:37 PM   #6
63frankintruck
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Re: looking for rear diff for 63

Quote:
Originally Posted by Captainfab View Post
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.
Great info. Where do the rears start to get wider?
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Old 12-28-2015, 12:06 AM   #7
Captainfab
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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.

Quote:
Originally Posted by 63frankintruck View Post
Great info. Where do the rears start to get wider?
__________________
Power Steering Box Adapter Plates For Sale HERE
Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE
Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE
Hydroboost Mounting Plates HERE
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