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Old Yesterday, 10:24 AM
cruiser cruiser is offline
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Wanted for Sierra

Just picked up a 2002 Gmc Sierra 2500hd with 8.1 and Allison Trans. from TEXAS. To replace my 2003 that's rusted from all the Michigan Winters. The only problem is that it has a regular rear differential. I need a limited slip for winter. Does any body have a lead how to get one? It has a 11.5 Ring Gear with 4.10 ratio.
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Old Yesterday, 11:23 AM
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Rossterman Rossterman is online now
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Is it 4wd? How did you verify it was an opend diff? Hopefully by the build tag? If so, you could install complete clutch style carrier, one of those ez locks that keeps original carrier ( so no resetting ring and pinion is required). Air locker, and several others to choose from. May also fing a complete unit out of another truck if it has the right gear ratio
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Old Yesterday, 12:25 PM
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Thrall Thrall is offline
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Quote:
Originally Posted by cruiser View Post
Just picked up a 2002 Gmc Sierra 2500hd with 8.1 and Allison Trans. from TEXAS. To replace my 2003 that's rusted from all the Michigan Winters. The only problem is that it has a regular rear differential. I need a limited slip for winter. Does any body have a lead how to get one? It has a 11.5 Ring Gear with 4.10 ratio.
Is the 2003 a 2500 or 3500? If so, swap out rear axles before you sell it if the 03 has the G80 locker. Keep the brakes off the 02 for rust reasons.
Otherwise look for a junk yard swap out or take it to a drivetrain shop and have them install the posi or locker of your choice. Since it's spring you have 6 months to surf CL. People part out trucks all the time.
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Old Yesterday, 01:05 PM
cruiser cruiser is offline
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Its a two wheel drive that's why I at least need a posi. I checked the code and also spun the wheels to verify. I sold the o3 already.
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  #5  
Old Yesterday, 02:51 PM
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The G80 is OK but a time bomb for most, I will be putting a TrueTrac in mine


http://www.differentials.com/frontpa...ac-for-14-bolt
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Old Yesterday, 07:49 PM
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The G80, or gov bomb as they call it, is ok for mild stuff but as said will surely blow if wheeled hard.
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Old Yesterday, 08:53 PM
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I see that you said winter driving. The G80 will be fine for snowy roads for sure. The only issue with G80s is if your high side or low side a wheel and get it spinning and then drop the off wheel onto something. That tends to rip them apart.
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Old Yesterday, 10:54 PM
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Don't anticipate too much wheelin in a 2 wheeler. Only had 125k on my 02 when I sold it but the G80 locker still worked.
If I was going to spend some coin I'd get an electric locker like the new Fords. Those are sweet.
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