Performance & Replacement Transmission & Drivetrain Parts

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...

Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.

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Results 1 - 12 of 12

Hays Street/Strip Clutch Kits 85-103

Clutch Kit, Street/Strip, Organic, 1 1/8 in.-10-Spline, 10.5 in. Diameter Disc, Buick, Chevy, Pontiac, Kit

Part Number: HAY-85-103

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

Summit Racing™ Differential Support Covers SME-8510300NL

Differential Cover, Aluminum, Natural, Bearing Cap Support, GM, 8.2 in., 8.5 in., 10-Bolt, Each

Part Number: SME-8510300NL

4.72 out of 5 stars ( 47 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

Trick Flow® 10 Bolt GM 8.5/8.6 Inch Differential Cover TFS-8510300

Trick Flow® 10 Bolt GM 8.5/8.6 Inch Differential Cover TFS-8510300

Differential Cover, Bearing Cap Supports, Aluminum, GM 10-Bolt, 8.5 in., 8.6 in., Rear Axle, Each

Part Number: TFS-8510300

4.75 out of 5 stars ( 44 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

Summit Racing™ Differential Support Covers SME-8510300

Differential Cover, Aluminum, Natural, Summit Logo, Bearing Cap Support, GM, 8.2 in., 8.5 in., 10-Bolt, Each

Part Number: SME-8510300

4.97 out of 5 stars ( 34 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

ACDelco - Axle Assemblies for 2018-2024 EQUINOX, TERRAIN - 85103941

CV Axle Assembly, Front Passenger Side Half-Shaft

Part Number: ADO-85103941

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

Beck/Arnley Rack and Pinion Bellows 103-2679

Rack and Pinion Bellows, Neoprene, Black, for Nissan, Chevy, Pontiac, Each

Part Number: BCK-103-2679

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

National Bearing Wheel Bearings NNTA6

Wheel Bearing, Tapered, Each

Part Number: NTL-A6

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

ACDelco GM Genuine Parts Wheel Bearings 19312427

Wheel Bearings, GM Genuine Parts, 1.250 in. Bore Diameter, Steel, 2.328 in. O.D., 0.625 in. Width, BMW, Buick, Chevy, Chrysler, Dodge, Ford, GMC, Each

Part Number: ADO-A6

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026