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Old 02-11-2012, 06:18 PM   #1
crazy longhorn
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00 GMC Z-71 rear dif

Codes in the glove box are GT4, & G80....if I get my info right, this tells 3.73, with locking diff? Do these have a clutch type posi, or are they like the old "gov bomb"? crazyL
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Old 02-11-2012, 09:17 PM   #2
clinebarger
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Re: 00 GMC Z-71 rear dif

Quote:
Originally Posted by crazy longhorn View Post
Codes in the glove box are GT4, & G80....if I get my info right, this tells 3.73, with locking diff? Do these have a clutch type posi, or are they like the old "gov bomb"? crazyL
Still the Gov Bomb.
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Old 02-11-2012, 11:08 PM   #3
crazy longhorn
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Re: 00 GMC Z-71 rear dif

Thanks, Ill put it on the "sell pile" , when I part the truck crazyL
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Old 02-11-2012, 11:24 PM   #4
Justin87
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Re: 00 GMC Z-71 rear dif

After mine blew in my 00 Z71 Sierra it got replaced with an Eaton Tru Trac. Much mo betta!!
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