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04-16-2018, 10:41 AM
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#1 |
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Registered User
Join Date: Nov 2011
Location: Port St. Joe Fl.
Posts: 491
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Posi Rear End
I want to switch my 10 bolt stock rear gear to a slip posi. and was wondering how many teeth are on the rear axles so I get the correct Differential (30 or 33)? The one that's in the truck is a 2.73. and with my motor I get no traction so I'm hoping the posi will help.
Should I go for the Posi 2.73? I only get 8 mpg as it is.  1985 Silverado 383 Stroker 425HP+ TH 350 B&M shift 12" wide rear tires |
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