1978 Differential & Rear-End Components Transmission & Drivetrain - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Yukon Gear & Axle Ring and Pinion Sets YG GM7.5-323 GM 7.5/7.6 in. 3.23 Gears

Ring and Pinion Gears, 3.23:1 Ratio, 27-spline, Standard Rotation, GM 7.5 in., GM 7.6 in., Set

Part Number: YGA-24477

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Powertrax Grip LS Traction Systems Ford 9 Inch LS109031

Differential, Grip LS Traction System, 31-Spline, Ford, 9 in., Each

Part Number: PWT-LS109031

Not Yet Reviewed

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Yukon Gear & Axle 1541H Alloy Axles YA D41677

Axle Shaft, Outer Stub, 1541H, 19 Spline, 9.94 in. Length, Dana 44, Each

Part Number: YGA-21086

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Yukon Gear & Axle Trac Loc Positraction Internals YPKGM8.5-P-28

Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit

Part Number: YGA-16052

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Spicer Drivetrain Products Pinion Bearings 706015X

Differential Pinion Bearing Kit (Cup/Cone) - Dana 50

Part Number: SDH-706015X

Not Yet Reviewed

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Richmond Gear EXCel Ring and Pinion Gear Installation Kits XL-1060-1

Ring and Pinion Installation Kit, Complete, Dana 35, Kit

Part Number: RMG-XL-1060-1

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Yukon Gear & Axle Differential Crush Sleeves YSPCS-025

Crush Sleeve, Steel, 0.825 in. Tall, GM 10.5 in. (14-bolt), Each

Part Number: YGA-33108

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19610-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19610-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Spicer Drivetrain Products Ring and Pinion Gear with Installation Kits 22745-5X Dana 44 4.09 Gears

Ring and Pinion Complete Kits, 4.09:1 Ratio, 26-spline, Standard Rotation, Dana 44, Chevy, Dodge, Ford, GMC, International, Isuzu, Jaguar, Jeep, Kit

Part Number: SDH-22745-5X

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Crown Automotive Axle Shaft Bearing Shims for 1976-1983 CJ5, 1976-1986 CJ7, 1981-1986 SCRAMBLER - 3141319K

Wheel Bearing Shim, Steel, Jeep, Set

Part Number: CWA-3141319K

Not Yet Reviewed

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Yukon Gear & Axle 10 Bolt Ford 8.8 Inch Differential Cover YP C1-F8.8

Differential Cover, 10-bolt, Steel, Chrome, Ford 8.8 in., Each

Part Number: YGA-32009

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Yukon Gear & Axle Bearing Kits BK F8-AG

Yukon bearing install kit for Ford 8" differential with aftermarket positraction or locker

Part Number: YGA-11112

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

USA Standard Gear ZG Series Ring and Pinion Sets ZG GM7.5-342 GM 7.5/7.625 in. 3.42 Gears

Ring and Pinion Gears, 3.42:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set

Part Number: SPZ-36195

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Timken Differential Bearings JLM704649

Bearing Race, Differential, Chrysler, Dodge, Plymouth, Each

Part Number: TMK-JLM704649

Not Yet Reviewed

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Dorman Pinion Crush Sleeves 81057

Pinion Crush Sleeves, Steel, GM, 8.5 in., 8.6 in., 8.75 in., Pair

Part Number: RNB-81057

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Yukon Gear & Axle 4340 Chromoly Axles YA W48202

Axle Shaft, Front Inner, 4340 Chromoly, 35 Spline, 15.96 in. Length, Dana 60, Each

Part Number: YGA-21377

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

Yukon Gear & Axle 10 Bolt Dana 30 Differential Cover YP C1-D30-STD

Differential Cover, 10-bolt, Steel, Chrome, Dana 30, Standard Rotation Only, Each

Part Number: YGA-32003

Not Yet Reviewed

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Hurst Ring and Pinion Sets 02-114 GM 8.875 in. (12-bolt) truck 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Truck, Set

Part Number: HUU-02-114

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Yukon Gear & Axle Bearing Kits BK F9-A

Ring and Pinion Gear Installation Kit, Bearing Overhaul, 28 Spline, Ford 9 in., Kit

Part Number: YGA-11043

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Motive Gear Crush Sleeves 9785792

Differential Crush Sleeves, Steel, Fits with Aftermarket Ring and Pinion Set Only, Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Each

Part Number: MGR-9785792

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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USA Standard Gear Spartan Lockers GM 8.5 Inch SL GM8.5-30

Differential Carrier, Spartan Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Part Number: SPZ-17041

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Richmond Gear Mini-Spools 78-1028-1

Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Powertrax No-Slip Traction Systems GM 8.5 Inch 9207852805

Differential, No-Slip Traction System, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-9207852805

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Richmond Gear Ring and Pinion Installation Half Kits 83-1034-B

Ring and Pinion Installation Kit, Dana 60, Kit

Part Number: RMG-83-1034-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Auburn Gear Grip-N-Loc 30 Spline Differential Dana 44 546082

Auburn Gear Grip-N-Loc 30 Spline Differential Dana 44 546082

Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, Chevrolet, Dodge, Ford, Jeep, Dana 44, Each

Part Number: AUB-546082

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today