GMC Differential & Rear-End Components

USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 3.73 ratio

Part Number: SPZ-36176

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Spider Gears, Internal Kit, Side Gears, Cross Pin and Bolt, GM 2000 and Newer, Rear, 8.6 in., 30- Spline, Kit

Part Number: YGA-16056

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today if shipped by air

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Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in. 12-Bolt Truck, Each

Part Number: PWT-GT248730

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 11, 2026 if ordered today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $896.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: SPZ-39026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today if shipped by air

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Spider Gears, Side Gears, Cross Shaft Pin, Yukon Dura Grip Carrier Style, Rear, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16039

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Estimated Ship Date: Jan 23, 2026 if ordered today

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Differential, Eaton Detroit Truetrac, 28-Spline, GM, 8.5 in., Truck, Front, Each

Part Number: ETN-912A557

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Truck, 3 Series, Set

Part Number: RMG-4900721

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today if shipped by air

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Zip Locker, Air Locker, Dana 60/61, 35 Spline, 4.10 Down Ratio, Each

Part Number: YGA-34022

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Ring and Pinion Gears, 5.38:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set

Part Number: SPZ-36053

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Spool, Full, Steel, 35-spline, 10-bolt, Dana 60, Each

Part Number: MGR-FSD60-35H

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today if shipped by air

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Replacement, Ramp to Spring, Each

Part Number: MMK-449-04

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Today if shipped by air

Ring and Pinion Complete Kits, 3.07:1 Ratio, 26-spline, Standard Rotation, Dana 44, Chevy, Dodge, Ford, GMC, International, Isuzu, Jaguar, Jeep, Kit

Part Number: SDH-706017-1X

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Estimated Ship Date: Today if shipped by air

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Axle Shaft, Rear, C-Clip, 1541H Alloy, 30 Spline, 31.500 in. Length, GM 8.5 in., Chevy/GMC, SUV, Each

Part Number: YGA-21266

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today if shipped by air

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Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in., 12-Bolt Car, Each

Part Number: PWT-GT231230

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $529.13

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Pinion Bearing Spacer, Crush Sleeve Eliminator, Steel, GM 8.875 in. Truck, Each

Part Number: YGA-55046

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today if shipped by air

Differential Carrier Bearing, Steel, Each

Part Number: TMK-SET42

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today if shipped by air

DIFFERENTIAL COVER

Part Number: YGA-29114

Not Yet Reviewed

Estimated Ship Date: Today if shipped by air

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Differential, Grip Pro Traction System, 30-Spline, GM 8.5in., 8.6 in., Each

Part Number: PWT-GT201030

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today if shipped by air

• Free Shipping
• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $766.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential Carrier, Open, Dana 44, 30-Spline, 3.92 and numerically higher ratio, Each

Part Number: SDH-706025X

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Today if shipped by air

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Spindle Nut Washers, Locking, Steel, Natural, Each

Part Number: SDH-33733

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today if shipped by air

Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, GM, 7.5 in., 7.625 in., Each

Part Number: AUB-546047

Not Yet Reviewed

Estimated Ship Date: Today if shipped by air

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Axle C-Clip, Steel, Natural, GM 7.5 in., GM 7.6 in., GM 8.0 in., Each

Part Number: YGA-33082

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today if shipped by air

Spool, Mini, Steel, 26-Spline, 10-Bolt, GM 7.5 in., Each

Part Number: MGR-MS75-26

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Today if shipped by air

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Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 4 Series, Set

Part Number: RMG-79-0072-1

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today if shipped by air

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Gear, Ring and Pinion, 3.08:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-308

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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