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Old 07-21-2015, 06:57 PM   #1
Paul Mitch
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1965 C-10 Ring and Pinion Gearing Change

I have a 65 C10 that Tacks very high on the freeway. I assume it has 3.73 or higher gears in the rear end. I have a powerglide transmission. I would like to go to a 3.08 set up.

Is this a straight forward swap. What do I need to look out for when buying a ring and pinion gear and bearing kit?

Is setting up the gears difficult?

Thanks ,

Paul
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Old 07-22-2015, 01:15 AM   #2
Captainfab
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Re: 1965 C-10 Ring and Pinion Gearing Change

When changing from 3.73 gears to a higher gear such as 3.08's you will have to change the carrier. Setting up differential gears requires some special tools and a bit of patience as well as being mechanically inclined.
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Old 07-22-2015, 11:03 AM   #3
vince1
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Re: 1965 C-10 Ring and Pinion Gearing Change

Changing out your transmission to a 700R4 would be IMO a better option.
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Old 07-22-2015, 11:40 AM   #4
1963c-10
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Re: 1965 C-10 Ring and Pinion Gearing Change

Heres the rear diff codes...check the axle tubes for your stamping and it'll tell you what came in it originally
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Old 07-22-2015, 09:37 PM   #5
Clyde65
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Re: 1965 C-10 Ring and Pinion Gearing Change

Professional rebuild with parts will run around $1500.

A 7004r installed in your driveway would be about half and would give tons more enjoyment
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Old 07-23-2015, 02:14 AM   #6
64chevtruck
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Re: 1965 C-10 Ring and Pinion Gearing Change

Howdy, I had 3.73 gears in my 70 GMC with a 3 on the tree, I bought some 308 rear ends out of 80s suburbans that were 5 lug for 50 apiece, I liked my rims so I just switched the axles out, was a fast easy switch. Now I got 308s and 6 lugs, no problem. Pics and more info in my build thread.

Hard to argue with a 700R4 though....
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