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 - 25 of 423

Powertrax Grip LS Traction Systems Ford 8 Inch LS108028

Differential, Grip LS Traction System, 28-Spline, Ford, 8 in., Each

Part Number: PWT-LS108028

5.0 out of 5 stars ( 3 )

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Summit Racing Equipment® U-Joints SUM-732002

Universal Joint, Spicer 1350 Style, Greasable, Steel, Each

Part Number: SUM-732002

3.17 out of 5 stars ( 6 )

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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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Boss Hog LS Night Stalker 1,000-1,200 Stall Torque Converter 4945HD

Boss Hog LS Night Stalker 1,000-1,200 Stall Torque Converter 4945HD

Torque Converter, Night Stalker, 12 in. Diameter, Lockup, Truck/Towing, GM, 4L60E, 4L65E, 300mm, Each

Part Number: APE-4945HD

3.4 out of 5 stars ( 5 )

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B&M Transmission Brackets and Levers 35498

Transmission Bracket, Steel, Natural, Chevy TH400/TH350/TH250/200-4R/700R4/TH350C, Kit

Part Number: BMM-35498

4.83 out of 5 stars ( 60 )

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Standard Motor Neutral and Backup Safety Switches LS-249

Neutral Safety and Backup Light Switch, Replacement, Steel, Ford, Jeep, Lincoln, Mercury, Each

Part Number: SMP-LS249

Not Yet Reviewed

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Standard Motor Neutral and Backup Safety Switches LS-230

Switch - Neutral/Backup

Part Number: SMP-LS230

4.0 out of 5 stars ( 3 )

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McLeod Hydraulic Throwout Bearing Spacers 1377-200

Hydraulic Throwout Bearing Spacers, Steel, 0.200 in. Thickness, 2-Hole Mount, Each

Part Number: MCL-1377-200

5.0 out of 5 stars ( 1 )

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LuK Clutch Kits for 2000-2001 LS - 6243605330

Clutch Kit, 1.125 in. - 10-spline, Organic Disc, Pressure Plate, Slave Cylinder, Lincoln, 3.0L, Kit

Part Number: LUK-07-200

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Yukon Gear & Axle Dura Grip Positraction Carriers GM 8.5/8.6 Inch YDGGM8.5-3-30-1

Dura Grip Positraction Carrier, Traction-Loc, GM 8.5/8.6 in., 30 Spline, 2.73 Up Ratio, Each

Part Number: YGA-26016

4.25 out of 5 stars ( 36 )

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RAM Concept 9.5 Dual Disc Clutch Kits with Billet Flywheel 75-2259NS

Clutch Kit, Force 9.5 Dual Disc, Metallic Disc, 1 1/8 in. 26- spline, Steel Flywheel, 157 Tooth, Ford, Kit

Part Number: RAM-75-2259NS

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

RAM Concept 9.5 Dual Disc Clutch Kits with Billet Flywheel 75-2259S

Clutch Kit, Force 9.5 Dual Disc, Organic Disc, 1 1/8 in. 26- spline, Steel Flywheel, 157 Tooth, Ford, Kit

Part Number: RAM-75-2259S

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

RAM Concept 9.5 Dual Disc Clutch Kits with Billet Flywheel 75-2257NS

Clutch Kit, Force 9.5 Dual Disc, Metallic Disc, 1 1/16 in. 10- spline, Steel Flywheel, 157 Tooth, Ford, Kit

Part Number: RAM-75-2257NS

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

RAM Concept 9.5 Dual Disc Clutch Kits with Billet Flywheel 75-2257S

Clutch Kit, Force 9.5 Dual Disc, 1.062 in. - 10-spline, Organic Disc, Pressure Plate, Flywheel, Ford, Kit

Part Number: RAM-75-2257S

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

Fidanza Billet Aluminum 168-Tooth Flywheel 198571

Flywheel, Aluminum, 12.5 lbs., Chevy, Each

Part Number: FIZ-198571

5.0 out of 5 stars ( 1 )

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Motive Gear Ring and Pinion Sets GM10-373 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73 Ratio, GM, 8.5 in/8.6 in., Set

Part Number: MGR-GM10-373

4.74 out of 5 stars ( 19 )

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Timken Pinion Bearings M88048

Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: TMK-M88048

5.0 out of 5 stars ( 14 )

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Timken Wheel Bearings SET6

Wheel Bearing, Front, Each

Part Number: TMK-SET6

4.85 out of 5 stars ( 41 )

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Moog Premium U-Joints 369

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-369

4.57 out of 5 stars ( 37 )

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Timken Wheel Bearings SET3

Wheel Bearing, Front Outer, Each

Part Number: TMK-SET3

4.65 out of 5 stars ( 26 )

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Timken Pinion Bearing Races M88010

Bearing Race, Differential Pinion, 2.687 in. Outside Diameter, Each

Part Number: TMK-M88010

5.0 out of 5 stars ( 8 )

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B&M Hammer Shifters 80885

Automatic Shifter, Hammer Shifter, Chevy, Mopar, Ford, Each

Part Number: BMM-80885

4.43 out of 5 stars ( 63 )

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Timken Wheel Bearings SET5

Wheel Bearing, Each

Part Number: TMK-SET5

4.43 out of 5 stars ( 14 )

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Moog Super Strength U-Joints 280

Universal Joint, 1310 Style, Greasable, Steel, Each

Part Number: MOG-280

4.71 out of 5 stars ( 34 )

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Richmond Gear EXCel Ring and Pinion Sets GM85373 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85373

4.17 out of 5 stars ( 12 )

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Moog Super Strength U-Joints 269

Universal Joint, Super Strength, 1310-CV Style, Solid, Steel, Each

Part Number: MOG-269

4.89 out of 5 stars ( 28 )

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