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 83

ATI Transmission Cooler Line Fittings ATI925143

Fitting, Transmission Line into Case Adapter, -6 AN Male to 9/16 in.-18 Male, Aluminum, Black Anodized, Each

Part Number: ATI-925143

Not Yet Reviewed

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Summit Racing Equipment® U-Joints SUM-732000

Universal Joint, Spicer 1310 Style, Greasable, Steel, Each

Part Number: SUM-732000

4.0 out of 5 stars ( 7 )

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Lokar Hi-Tech Kickdown Kits KD-20C6HT

Lokar Hi-Tech Kickdown Kits KD-20C6HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, Ford, Lincoln, Mercury, C-6, Kit

Part Number: LOK-KD-20C6HT

4.73 out of 5 stars ( 30 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-20C6U

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, Ford, C-6, Kit

Part Number: LOK-KD-20C6U

5.0 out of 5 stars ( 5 )

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Lokar Midnight Series Stainless Steel Hi-Tech Kickdown Kits XKD-20C6HT

Automatic Transmission Kickdown Cable, Midnight Series Hi-Tech, Black Braided Stainless Steel, Black Aluminum Fittings, Ford, C-6, Kit

Part Number: LOK-XKD-20C6HT

4.0 out of 5 stars ( 2 )

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Allstar Performance Power Steering Reservoirs ALL36136

Power Steering Reservoirs, Firewall Mount, Left Hand Inlet, Aluminum, Natural Finish, -10 AN Supply, -6 AN Return, 8.0 in. Tall, with Cap, Each

Part Number: AAF-ALL36136

5.0 out of 5 stars ( 1 )

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Allstar Performance Power Steering Reservoirs ALL36137

Power Steering Reservoirs, Firewall Mount, Right Hand Inlet, Aluminum, Natural Finish, -10 AN Supply, -6 AN Return, 8.0 in. Tall, with Cap, Each

Part Number: AAF-ALL36137

Not Yet Reviewed

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Lokar Vintage Series Kickdown Kits VS-20C65

Automatic Transmission Kickdown Kit, Vintage Series, Ford, C-6, Black/Red, Kit

Part Number: LOK-VS-20C65

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

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Estimated Ship Date: Nov 25, 2025 if ordered today

Lokar Hi-Tech Kickdown Kits KD-2727HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, Torqueflite 727, Kit

Part Number: LOK-KD-2727HT

4.62 out of 5 stars ( 58 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2400HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD2400HT

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Lokar Midnight Series Stainless Steel Hi-Tech Kickdown Kits XKD-2400HT

Automatic Transmission Kickdown Cable, Midnight Series Hi-Tech, Black Braided Stainless Steel, Black Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-XKD-2400HT

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2400U

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD-2400U

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Hays Hydraulic Release Bearing Feed Line Kits for 2010-2019 CAMARO, 2005-2013 CORVETTE, 2005-2017 MUSTANG - 82-112

Clutch Line, Hydraulic Release Bearing Feed Line, Two -3 AN Adapter Fittings, 36 in. Length, Chevy, Ford, Kit

Part Number: HAY-82-112

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

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Estimated Ship Date: Dec 2, 2025 if ordered today

Lokar Hi-Tech Kickdown Kits KD-2727U

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, Mopar, Torqueflite 727, Kit

Part Number: LOK-KD-2727U

4.77 out of 5 stars ( 22 )

Estimated Ship Date: Today

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Lokar Midnight Series Stainless Steel Hi-Tech Kickdown Kits XKD-2727HT

Automatic Transmission Kickdown Cable, Midnight Series Hi-Tech, Black Braided Stainless Steel, Black Aluminum Fittings, Chrysler, Torqueflite 727, Kit

Part Number: LOK-XKD-2727HT

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2400BLDU

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH400, Kit

Part Number: LOK-KD-2400BLDU

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

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Estimated Ship Date: Nov 25, 2025 if ordered today

Chevrolet Performance SuperMatic 6L80-E Transmission Kits 19366637

Automatic Transmission Package, SuperMatic 6L80E, 2,400-2,800 Stall Converter, Chevrolet, LSX Engines, RWD, Kit

Part Number: NAL-19366637

Not Yet Reviewed

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Eddie Motorsports Billet Clutch Reservoirs MS110-70BA

Hydraulic Clutch Reservoir, Billet Aluminum, Black Anodized Finish, 4 oz, Each

Part Number: EMS-MS110-70BA

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Chevrolet Performance SuperMatic 6L80-E Transmissions 19417102

Automatic Transmission, SuperMatic 6L80-E, 3000-3400 Stall Converter, 650 lb. ft. Torque, Controller, Harness, Chevrolet, LS/LSX Crate Engines, Kit

Part Number: NAL-19417102

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Chevrolet Performance SuperMatic 6L80-E Transmission Kits 19432684

AUTO TRANSMISSION KIT 6L80 LT4

Part Number: NAL-19432684

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

Eddie Motorsports Billet Clutch Reservoirs MS110-70P

Hydraulic Clutch Reservoir, Billet Aluminum, Polished Finish, 4 oz, Each

Part Number: EMS-MS110-70P

Not Yet Reviewed

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Lokar Hi-Tech Kickdown Kits KD-2AODHT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, Ford, Lincoln, Mercury, AOD, Kit

Part Number: LOK-KD2AODHT

4.88 out of 5 stars ( 52 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2700HT

Automatic Transmission Kickdown Cable, Hi-Tech, Braided Stainless Steel, Natural Aluminum Fittings, GM, 700R4, Kit

Part Number: LOK-KD-2700HT

4.85 out of 5 stars ( 34 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2350HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KD-2350HT

4.89 out of 5 stars ( 38 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2AODU

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, Ford, AOD, Kit

Part Number: LOK-KD-2AODU

4.84 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Lokar Hi-Tech Kickdown Kits KD-2350U

Automatic Transmission Kickdown Cable, Hi-Tech, Black Vinyl, Natural Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KD-2350U

4.52 out of 5 stars ( 33 )

Estimated Ship Date: Today

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