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 2000 +

Summit Racing™ TH350 Automatic Transmission SUM-700310-X

Automatic Transmission, Forward Shift Pattern, Automatic Valve Body, Chevy, 600 HP, TH350, Each

Part Number: SUM-700310-X

2.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Summit Racing™ 30-Spline TH350 Transmission Rebuild Kit SUM-705000

Automatic Transmission Rebuild Kit, GM, TH350, Non-Lockup, 30-Spline, Kit

Part Number: SUM-705000

4.18 out of 5 stars ( 11 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits 6405507

Clutch Kit, RST Street Twin, Organic, 1.125 in. - 26, Billet Steel Flywheel, Chevy, Pontiac, Small Block LS, Kit

Part Number: MCL-6405507

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Valair Performance Quiet Street Dual Disc Clutch Kits QG56DDSN-ORG

Clutch Kits, Quiet Street Dual Disc, 1.375 in. - 10-spline, Organic Disc, 12.250 in. Diameter, Pressure Plate, Flywheel, Dodge, Ram, L6 Diesel, Kit

Part Number: VAI-QG56DDSN-ORG

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Tremec T-56 Manual Transmissions TUET11009

Transmission, Manual, Tremec T-56 Magnum, 6-Speed, 1 1/8 in. 26-Spline, Chevy, Buick, Oldsmobile, Pontiac, Each

Part Number: REM-TUET11009

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

TCI StreetFighter TH350 Transmission 311010

TCI StreetFighter TH350 Transmission 311010

Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic/Manual Valve Body, Chevy, TH350, Each

Part Number: TCI-311010

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RXT Street Twin Clutch Kits 6405507M

Clutch Kit, Street Twin, Ceramic, 1 1/8 in- 26, Billet Steel Flywheel, Diaphram, Pilot Bushing, Chevy, LS, Kit

Part Number: MCL-6405507M

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Tremec Magnum-F Manual Transmissions for 1998-2002 CAMARO, FIREBIRD - TUET16362

Manual Transmission, Tremec Magnum-F, 6 Speed, 1-1/8 X 26 Spline , GM, Each

Part Number: REM-TUET16362

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits for 2009-2021 CHALLENGER - 6344907

Clutch Kit, RST, Billet Aluminum Flywheel, Mopar, 5.7L-6.4L, 1-1/8 x 26, 130 Tooth, Kit

Part Number: MCL-6344907

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

B&M StarShifters 80675

Automatic Shifter, StarShifter, Chevy, Ford, Lincoln, Mercury, Mopar, Each

Part Number: BMM-80675

4.63 out of 5 stars ( 156 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Tremec T-56 Manual Transmissions TUET16885

Manual Transmission, T-56, 6 Gears, 1.125 in. - 26-spline, 31-spline Output, 2.97:1 First Gear Ratio, Aluminum Case, T-56, Chevrolet, Each

Part Number: REM-TUET16885

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Tremec T-56 Manual Transmissions TUET11010

Manual Transmission, T-56, 6 Gears, 1.125 in. - 26-spline Input, 31-spline Output, 2.66:1 First Gear Ratio, Aluminum Case, T-56, Ford, Each

Part Number: REM-TUET11010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Tremec Magnum-F Manual Transmissions for 1998-2002 CAMARO, FIREBIRD - TUET17638

Manual Transmission, Magnum-F, 6 Gears, 1.125 in. - 26-spline, 31-spline Output, 2.97:1 First Gear Ratio, Tremec Magnum, Chevrolet, Pontiac, Each

Part Number: REM-TUET17638

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits 6911-07

Clutch Kit, RST, 1 1/8 in. x 26-Spline, 9.688 in. Diameter Disc, Chevy, Small/Big Block, Kit

Part Number: MCL-6911-07

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits for 2018-2023 MUSTANG - 6333825

Clutch Kit, RST Street Twin, 9.688 in. Disc, 1 in. 23 Spline, Ford, Kit

Part Number: MCL-6333825

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

Sonnax Clutch Hubs 34322-02K

Clutch Hub, Full, Forged, Extreme Duty, GM, 4L80E, 4L85E, TH400, TH425, Kit

Part Number: SOX-34322-02K

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RXT Street Twin Clutch Kits for 2012-2023 CAMARO, 2014-2019 CORVETTE, 2009-2015 CTS - 6306807M

Clutch Kit, RXT Street Twin, 1.125 in. - 26-spline, Ceramic Disc, Pressure Plate, Billet Aluminum Flywheel, Chevy, Kit

Part Number: MCL-6306807M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits 6913-07

Clutch Kit, RST, 1 1/8 in. x 26-Spline, 9.687 in. Diameter Disc, Chevrolet, Ford, Kit

Part Number: MCL-6913-07

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RXT Street Twin Clutch Kits 6305507M

Clutch Kit, RXT Street Twin, 1.125 in. - 26-spline, Ceramic Disc, Billet Aluminum Flywheel, Chevy, Pontiac, Kit

Part Number: MCL-6305507M

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

QuickTime Bellhousings RM-8019

Bellhousing, QuickTime, Low Profile, Steel, Chevy, LS to Chevy T-56 Transmission, Tremec Magnum, Kit

Part Number: QTI-RM-8019

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits for 2011-2017 MUSTANG - 6435825

Clutch Kit, RST Twin Disc Power Pack, 23-Spline, 1 in. Input Shaft Diameter, 9.688 in. Disc Diameter, Metallic Disc, Unsprung Hub, Kit

Part Number: MCL-6435825

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

B&M Holeshot 1,800-2,200 Stall Torque Converter 20416

Torque Converter, Holeshot, 1,800-2,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20416

4.39 out of 5 stars ( 18 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits 6912-07

Clutch Kit, RST Street Twin, 1 1/8 in. x 26-Spline, 9.687 in. Diameter, LS1/LS6/Mustang 11 in. Pressure Plate Pattern w/Dowels, Chevy, Ford, Kit

Part Number: MCL-6912-07

4.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RST Street Twin Clutch Kits 6305507

Clutch Kit, RST Street Twin, 1.125 in. - 26-spline, Organic Disc, Billet Aluminum Flywheel, Chevy, Pontiac, Kit

Part Number: MCL-6305507

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

McLeod RXT Street Twin Clutch Kits for 2009-2021 CHALLENGER - 6344907M

Clutch Kit, RXT Street Twin Disc, 26 Spline, 1.125 in. Input Shaft, Ceramic Disc, Kit

Part Number: MCL-6344907M

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

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