GMC Differential & Rear-End Components

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 12-Bolt Truck, 3 Series, Set

Part Number: RMG-6903501

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Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, GM, 8.5 in., 8.6 in., Each

Part Number: AUB-546052

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Gear, Ring and Pinion, EXCel, 4.56:1 Ratio, GM, 8.875 in., 12-Bolt Truck, Set

Part Number: RMG-12BT456T

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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Axle Shaft, Direct Fit, 1541H Alloy Steel, 30-Spline, 31.812 in. Length, Chevy, GMC, Each

Part Number: MGR-MG27110

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Spider Gear Kit, Open Differential, GM 8.875 in., 30 Spline, Kit

Part Number: YGA-16043

5.0 out of 5 stars ( 5 )

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Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 27 Spline, 7.500 in. Ring Gear, GM 7.5/7.6 in., Set

Part Number: YGA-24146

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Ring and Pinion Installation Kit, Master Kit, GM 9.5, 30-Spline Pinion, Kit

Part Number: MGR-R9-5GRLMK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Pinion Bearing, Tapered Cone, 1.875 in. I.D., Cadillac, Chevrolet, GMC, Dodge, Oldsmobile, Pontiac, Each

Part Number: TMK-HM804846

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Differential Cover, Steel, Chrome, GM, 12-Bolt, Truck, Kit

Part Number: MRG-9895

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Axle Shaft, OEM Replacement, 30-Spline, 31.281 in. Length, Chevy, GMC, 8.875 in., Rear, Each

Part Number: RMG-92-25155

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Axle Shafts, Direct Fit, New, Neoprene Boots, Front Left or Right, Cadillac, Chevrolet, GMC, Each

Part Number: AAZ-66-1009

3.86 out of 5 stars ( 14 )

Estimated Ship Date: Today

Axle Shaft, Direct Fit, Front, 4340 Chromoly, Chevy, GMC, SUV, Pickup, Each

Part Number: MGR-MG22172

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Feb 25, 2026 if ordered today

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GRIP PRO GM9.5"/9.76" 33SPL 3.42 & UP

Part Number: PWT-GT239733

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Estimated Ship Date: Mar 26, 2026 if ordered today

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Performance Mini Spool (GM 8.5 - 30 Spline)

Part Number: SDH-10015388

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Spool, Mini, Steel, 28-Spline, GM 7.625 in., Each

Part Number: MGR-MS75-28

4.15 out of 5 stars ( 20 )

Estimated Ship Date: Today

Differential Bearing Kit, Differential Master Bearing Kit - Koyo

Part Number: MGR-R9-5GRLAMK

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Ring and Pinion Installation Kit, AAM, 11.5 in., 14-Bolt, Kit

Part Number: MGR-R11-5R

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Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit

Part Number: MGR-R10REMK

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Spool, Mini, Steel, 30-spline, 10-bolt, GM 8.5 in., Each

Part Number: YGA-32233

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Differential Cover, Perfect Launch, 10-bolt, Aluminum, Black, Dana 60, Each

Part Number: PRO-69504

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Gear, Ring and Pinion, 4.30:1 Ratio, Dana 80, Set

Part Number: SPZ-36096

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Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit

Part Number: MGR-R12CRMK

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Gear, Ring and Pinion, 4.88:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901691

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Yukon front 4340 Chromoly axle kit for '77-'91 GM, Dana 60 with 35 splines

Part Number: YGA-21396

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Estimated Ship Date: Mar 9, 2026 if ordered today

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