GMC Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Eaton Detroit Truetrac 28 Spline Differential GM 8.5 Inch 912A557

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

Part Number: ETN-912A557

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

Richmond Gear Mini-Spools 78-7528-1

Mini Spool, GM 7.5 in. 10-Bolt, Open Carrier, Equal Windows, 28-Spline, Each

Part Number: RMG-78-7528-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Timken Pinion Bearings HM89449

Pinion Bearing, 1.437 in. i.d., BMW, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Mercedes-Benz, Volvo, Each

Part Number: TMK-HM89449

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Richmond Gear EXCel Ring and Pinion Sets D44373 Dana 44 3.73 Gears

Ring and Pinion Kit

Part Number: RMG-D44373

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Timken Pinion Bearings HM88649

Differential Pinion Bearing, 1.375 in. Inside Diameter, Each

Part Number: TMK-HM88649

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Yukon Gear & Axle 4340 Chromoly Axles YA W26002

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

Part Number: YGA-21396

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Motive Gear Super Ring and Pinion Gear Installation Kits R7.5GRSK

Ring and Pinion Installation Kit, Super Kit, GM, 7.5 in., Kit

Part Number: MGR-R75GRSK

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

USA Standard Gear Axle Shafts ZA G3893605

Axle Shaft, 30-spline Inner, 30.75 in. Length, GM 8.875 in. (12-bolt) Truck, Rear, Chevrolet, GMC, Each

Part Number: SPZ-35108

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Motive Gear Master Ring and Pinion Installation Kits R80RMKK

Ring and Pinion Installation Kit, Master Kit, GM 7.75 IRS, Kit

Part Number: MGR-R80RMK

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Spicer Drivetrain Products Differential Bearing Kits 706070X

Differential Carrier Bearings, Steel, Dana 60, Dana 70, Dana 80, Chevrolet, GMC, Dodge, Each

Part Number: SDH-706070X

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2014 GM 8.5 in. 4.56 Gears

Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"

Part Number: YGA-10409

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2011 GM 8.5 in. 3.42 Gears

Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"

Part Number: YGA-10406

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

ACDelco GM Genuine Parts CV Axle Shafts 84873209

Axle Shafts, Direct Fit, GM OE CV Axle Shaft, 17.450 in. Length, 36 Spline, Steel, Chevy, GMC, Truck, Each

Part Number: ADO-84873209

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Richmond Gear Complete Ring and Pinion Installation Kits 83-1035-1

Ring and Pinion Installation Kit, Complete, Dana 60, Rear, Kit

Part Number: RMG-83-1035-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Richmond Gear Ring and Pinion Sets 49-0072-1 GM 8.875 in. (12-bolt) truck 3.73 Gears

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: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Spicer Drivetrain Products Spindle Lock Nut Washers 33733

Spindle Nut Washers, Locking, Steel, Natural, Each

Part Number: SDH-33733

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Motive Gear Ring and Pinion Sets GM7.5-373 GM 7.5/7.625 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2238 GM 7.5/7.625 in. 3.73 Gears

Ring and Pinion Gears,Yukon Gear & Axle 7.5"/7.625" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals

Part Number: YGA-10638

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Spicer Drivetrain Products Differential Cover Bolts 34279

Differential Cover Bolts, Steel, Black, Hex, Each

Part Number: SDH-34279

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Motive Gear Performance Ring and Pinion Sets G882411 GM 8.2 in. 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.2 in., Set

Part Number: MGR-G882411

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Richmond Gear Pro Gear Ring and Pinion Sets 79-0099-1 GM 8.875 in. (12-bolt) passenger car 4.11 Gears

5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026

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USA Standard Gear ZG Series Ring and Pinion Sets ZG GM11.5-456 AAM/Chrysler/GM 11.5 in. 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, Chrysler 11.5 in., GM 11.5 in., Set

Part Number: SPZ-36162

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Spicer Drivetrain Products Ring and Pinion Gear with Installation Kits 706017-1X Dana 44 3.07 Gears

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

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Richmond Gear Differential Carrier Bearing Shim Kits 38-0006-1

Differential Side Bearing Spacer; Differential Carrier Shims; For Ford 7.5 in./GM 7.5 in./GM 8.5 in./GM 8.2 in

Part Number: RMG-3800061

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Yukon Gear & Axle 12 Bolt GM 8.875 Inch Differential Cover YP C2-GM12T

Differential Cover, 12-bolt, Aluminum, Polished, GM 8.875 in. Truck, Chevy, GMC, Each

Part Number: YGA-32027

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Timken Pinion Bearings 02872

Differential Pinion Bearing, 1.125 in. Inside Diameter, Each

Part Number: TMK-02872

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Estimated Ship Date: Monday 3/23/2026 if shipped by air