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1991 GMC G2500

1991 GMC G2500 Differential Cases

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Yukon standard open carrier case, GM 8.5", 2.73 & up
Part Number: YUKYCG26010481
Guaranteed to Fit
$217.89
Vehicle Fitment
  • 1991 GMC G2500 Rally All Engines RWD, GM 8.5 in.
  • 1991 GMC G2500 Vandura All Engines RWD, GM 8.5 in.
  • 1991 GMC G2500 Rally STX All Engines RWD, GM 8.5 in.
Product Details
Location : RearAxle Type : GM 8.5 in.Spline Count : 28 or 30Gear Ratio : 2.73 and upProduct Fit : Direct FitRecommended Use : PerformanceWarranty : 1 year Yukon Gear & Axle limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replacement Bare Case For Gm 8.5" & 8.6" Dura Grip.
Part Number: YUKYCGM85DG3
Guaranteed to Fit
$385.89
Vehicle Fitment
  • 1991 GMC G2500 Rally All Engines RWD, GM 8.5 in.
  • 1991 GMC G2500 Vandura All Engines RWD, GM 8.5 in.
  • 1991 GMC G2500 Rally STX All Engines RWD, GM 8.5 in.
Product Details
Location : RearProduct Fit : Direct FitRecommended Use : OE ReplacementWarranty : 1 year Yukon Gear & Axle limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Helpful Automotive Resources

Your Guide to How Spider Gears Work, Plus FAQs
Your Guide to How Spider Gears Work, Plus FAQsInside the differential case, there are two side gears and two pinion gears. The pinion gears are technically the spider gears, but many people simply refer to all four of the gears as spider gears. A spider gear is an example of a bevel gear that rotates around the differential case.