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 871

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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Advance Adapters Clutch Fittings for 1997-2001 CHEROKEE, 1997-2006 WRANGLER - 716130TJ

Advance Adapters Clutch Fittings for 1997-2001 CHEROKEE, 1997-2006 WRANGLER - 716130TJ

Fitting, Straight, Steel, Gold Iridited, -3 AN, 7/16-24 in. Inverted Flare, Male Threads, Each

Part Number: ADD-716130TJ

4.86 out of 5 stars ( 7 )

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Detroit Speed Differential Bung Fittings 99070003

Drain Plug Fitting, Steel Bung, 1.0-12 UNF, Each

Part Number: DSR-99070003

Not Yet Reviewed

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ACDelco GM Genuine Parts Multi-Purpose Threaded Plugs 19256068

Plug Fitting, GM Genuine Parts Multi-Purpose Threaded Plug, Steel, Natural, Buick, Cadillac, Chevrolet, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-19256068

Not Yet Reviewed

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Lokar Anchor-Tight Locking Transmission Dipstick Bottom Fitting Assemblies 1208144

Transmission Dipstick Bottom Fitting Assembly, Brite Anodized, GM TH350/TH400, Anchor-Tight, Each

Part Number: LOK-1208144

Not Yet Reviewed

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Lokar Anchor-Tight Locking Transmission Dipstick Bottom Fitting Assemblies 1208114

Transmission Dipstick Bottom Fitting Assembly, Brite Anodized, OEM/Aftermarket Powerglide, Anchor-Tight, Each

Part Number: LOK-1208114

Not Yet Reviewed

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WEHRS Tranny And Rear End Breather Fittings WM128B

Transmission and Rear End Vent, -4 AN to 1/2 in. Barb, Includes Breather Filter, Each

Part Number: WEH-WM128B

5.0 out of 5 stars ( 1 )

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Spicer Drivetrain Products Axle Vent Fittings 16979

Tube Vent

Part Number: SDH-16979

Not Yet Reviewed

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Lokar Midnight Series Anchor-Tight Locking Transmission Dipstick Bottom Fitting Assemblies X1208127

Auto Trans Dipstick

Part Number: LOK-X1208127

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Dedenbear Digital LED Dial-In Board Remote Display Cable Tee Fittings RDCT

ET Dial In Board Replacement Component, Remote Display Tee Cable Adapter, Each

Part Number: DED-RDCT

Not Yet Reviewed

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WEHRS Tranny And Rear End Breather Fittings WM128

Transmission and Rear End Vent, -4 AN to 1/2 in. Barb, Each

Part Number: WEH-WM128

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

4.89 out of 5 stars ( 54 )

Estimated Ship Date: Today

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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-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-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 )

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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-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 Hi-Tech Kickdown Kits KD-20C4HT

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, Ford, Lincoln, Mercury, C-4, Kit

Part Number: LOK-KD-20C4HT

4.95 out of 5 stars ( 21 )

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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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Lokar Midnight Series Stainless Steel Hi-Tech Kickdown Kits XKD-2700HT

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

Part Number: LOK-XKD2700HT

5.0 out of 5 stars ( 5 )

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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 )

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Quarter Master Street Series Hydraulic Throwout Bearing Kits 721100

Throwout Bearing, Street, Hydraulic, Lines, Fittings, Kit

Part Number: QTM-721100

5.0 out of 5 stars ( 2 )

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McLeod 1400 Series Hydraulic Throwout Bearings for 2010-2015 CAMARO, 2005-2017 MUSTANG - 14-301

Throwout Bearings, Hydraulic, Self Align, 1.063 in. Bearing Retainer Dia., w/Collar/Swivel Fittings/Stainless Braided Lines/Bleeder, Chevy, Ford, Each

Part Number: MCL-14-301

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today