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1999 GMC Sonoma
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1999 GMC Sonoma

1999 GMC Sonoma Differential Cases

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Yukon 30 spline standard open loaded carrier case, GM 8.6
Yukon Gear & Axle®
Yukon 30 spline standard open loaded carrier case, GM 8.6
Part Number: YUKYCG40048044
Guaranteed to Fit
$445.89
Vehicle Fitment
  • 1999 GMC Sonoma SL All Engines 4WD, GM 8.6 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 8.6 in.
  • 1999 GMC Sonoma SLS All Engines 4WD, GM 8.6 in.
Product Details
Location : RearAxle Type : GM 8.6 in.Product 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.

Yukon standard open carrier case, GM 8.5", 2.73 & up
Yukon Gear & Axle®
Yukon standard open carrier case, GM 8.5", 2.73 & up
Part Number: YUKYCG26010481
Guaranteed to Fit
$217.89
Vehicle Fitment
  • 1999 GMC Sonoma SLS All Engines 4WD, GM 8.5 in.
  • 1999 GMC Sonoma SL All Engines 4WD, GM 8.5 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, 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.

Yukon standard open carrier case, GM 7.625", 3.23 & up
Yukon Gear & Axle®
Yukon standard open carrier case, GM 7.625", 3.23 & up
Part Number: YUKYCG26033477
Guaranteed to Fit
$335.89
Vehicle Fitment
  • 1999 GMC Sonoma SL All Engines RWD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLS All Engines RWD, GM 7.5 in. and 7.6 in.
Product Details
Location : RearAxle Type : GM 7.625 in.Gear Ratio : 3.23 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.

Differential Case - Direct Fit, Sold individually
Yukon Gear & Axle®
Differential Case - Direct Fit, Sold individually
Part Number: YUKYCGM85DG3
Guaranteed to Fit
$385.89
Vehicle Fitment
  • 1999 GMC Sonoma SLS All Engines 4WD, GM 8.5 in., GM 8.6 in.
  • 1999 GMC Sonoma SL All Engines 4WD, GM 8.5 in., GM 8.6 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 8.5 in., GM 8.6 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.

Yukon Dura Grip case, GM 7.5 & 7.625", 3.23 & up
Yukon Gear & Axle®
Yukon Dura Grip case, GM 7.5 & 7.625", 3.23 & up
Part Number: YUKYCGM75DG3
Guaranteed to Fit
$385.89
Vehicle Fitment
  • 1999 GMC Sonoma SL All Engines RWD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLS All Engines RWD, GM 7.5 in. and 7.6 in.
Product Details
Location : RearAxle Type : GM 7.5 in., 7.625 in.Gear Ratio : 3.23 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.

Yukon standard open carrier case, GM 7.625", 3.23 & up
Yukon Gear & Axle®
Yukon standard open carrier case, GM 7.625", 3.23 & up
Part Number: YUKYCG74038615
Guaranteed to Fit
$477.89
Vehicle Fitment
  • 1999 GMC Sonoma SL All Engines RWD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 7.5 in. and 7.6 in.
  • 1999 GMC Sonoma SLS All Engines RWD, GM 7.5 in. and 7.6 in.
Product Details
Location : RearGear Ratio : 3.23 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.

7.2IFS GM Standard Open loaded case 3.23 & up.
Yukon Gear & Axle®
7.2IFS GM Standard Open loaded case 3.23 & up.
Part Number: YUKYCG46002013
Guaranteed to Fit
$437.89
Vehicle Fitment
  • 1999 GMC Sonoma SL All Engines 4WD, GM 7.2 in.
  • 1999 GMC Sonoma SLS All Engines 4WD, GM 7.2 in.
  • 1999 GMC Sonoma SLE All Engines 4WD, GM 7.2 in.
Product Details
Location : FrontNotes : IFS; Includes Spider GearsAxle Type : GM 7.2 in.Gear Ratio : 3.23 and upProduct Fit : Direct FitRecommended Use : PerformanceWarranty : 1 year Yukon Gear & Axle limited warrantyQuantity Sold : KitProp 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.