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08-14-2008, 02:24 PM
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#1 |
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Registered User
Join Date: Aug 2008
Location: Calgary Alberta Canada
Posts: 26
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Diff Problems
I have a 1968 gmc with rear leaf spring suspension and my diff blew up.Now im pretty sure its a 12 bolt and im wondering if i shoould keep it and rebuild it or if there is a stronger more reliable one that i can just bolt in!! Any suggestions???
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08-14-2008, 02:39 PM
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#2 |
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Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
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Re: Diff Problems
12 bolt is a pretty reliable unit if you keep oil in it. Being a leaf spring, you can find a direct replacement in any 73-87 truck as well as 67-72 leaf trucks.
__________________
Bill BEATERS ARE NEATER |
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08-14-2008, 02:42 PM
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#3 |
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Registered User
Join Date: Aug 2008
Location: Calgary Alberta Canada
Posts: 26
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Re: Diff Problems
Cool thats what i was hopeing to hear!! I have a line on a diff out of a 1984 with full posi and 4:10 gears but i wasnt sure it would fit!! Thanks
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08-14-2008, 02:45 PM
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#4 |
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Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,270
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Re: Diff Problems
You may have to remove and reposition the leaf pads, but it is pretty minor. BTW a used diff is just as chancy as the one you broke, can you drive the truck before pulling the rear?? If not pop the cover and look at every tooth, and be sure no metal in the pumkin (watch as the gear lube dumps out). Building one with a posi would cost you about $800-1200 depending on parts and labor, but the rear would be good for another 40 years, just a matter of budget and intended use and length of ownership?
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