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 +

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Summit Racing™ Pro LS 3,000-3,200 Stall Torque Converter SUM-700342

Torque Converter, Pro LS, 11 in. Diameter, Chevy LS, 4L80E, 2.650 in. Hub Height, 3,000-3,200 Stall, Each

Part Number: SUM-700342

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

TCI StreetFighter Automatic Transmission Packages 371000P1

TCI StreetFighter Automatic Transmission Packages 371000P1

Automatic Transmission Package, 700R4 Transmission/2,400 rpm Flash Stall Converter/Cooler/Fluid, Chevy

Part Number: TCI-371000P1

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

FTI Performance SB Series 3,200 Stall Torque Converter SB3200LS

Torque Converter, SB Series, 11.0 in. Diameter, 3,200 rpm Flash Stall, 4L60E, 4L65E, Lockup, LS Bolt Pattern, Each

Part Number: FTI-SB3200LS

4.0 out of 5 stars ( 19 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Holley Sniper Automatic Transmission Controllers 551-103

Automatic Transmission Controllers, Sniper 2 EFI, Controller and Power Harness, Kit

Part Number: SNE-551-103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Summit Racing™ Pro LS 3,000-3,200 Stall Torque Converter SUM-700344

Torque Converter, Pro LS, 11 in. Diameter, Chevy, 6L80E/6L90E, 3,000-3,200 Stall, Each

Part Number: SUM-700344

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

FTI Performance SB Series 3,000 Stall Torque Converter SB3000LS

Torque Converter, SB Series, 11.0 in. Diameter, 3,000 rpm Flash Stall, 4L60E, 4L65E, Lockup, Each

Part Number: FTI-SB3000LS

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

American Powertrain Hydramax Hydraulic Clutch Release Systems HMGM01101G

Throwout Bearing Conversion, Hydraulic, Hydramax, GM, TKO/TKX/Muncie/Saginaw/Richmond/Lenco, Kit

Part Number: AWR-HMGM01101SR

3.93 out of 5 stars ( 40 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

FTI Performance SB Series 2,800 Stall Torque Converter SB2800LS

Torque Converter, SB Series, 11.0 in. Diameter, 2,800 rpm Flash Stall, 4L60E, 4L65E, 4L70E, Lockup, Each

Part Number: FTI-SB2800LS

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Holley Sniper Automatic Transmission Controllers 551-102

Automatic Transmission Controllers, Sniper EFI, Standalone Kit, Carbureted Applications, Kit

Part Number: SNE-551-102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

TCI Machined 168-Tooth Flexplate 399754

Flexplate, 168-tooth, Steel, Internal Engine Balance, SFI 29.1, TH400/4L80E, Chevy LS, Each

Part Number: TCI-399754

4.9 out of 5 stars ( 29 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Summit Racing™ Pro LS 2,600-2,800 Stall Torque Converter SUM-700345

Torque Converter, Pro LS, 11 in. Diameter, Chevy, 6L80E/6L90E, 2,600-2,800 Stall, Each

Part Number: SUM-700345

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Sonnax Zip Kits 6L45-6L90-ZIP

Shift Kit, Zip Kit, Chevy, Kit

Part Number: SOX-6L45-6L90ZIP

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

B&M Unimatic Shifters 80775

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

Part Number: BMM-80775

4.3 out of 5 stars ( 73 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

FTI Performance SB Series 2,600 Stall Torque Converter SB2600LS

Torque Converter, SB Series, 11.0 in. Diameter, 2,600 rpm Flash Stall, 4L60E, 4L65E, Lockup, Each

Part Number: FTI-SB2600LS

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

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