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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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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.

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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Individual Parts

Results 1 - 25 of 2000 +

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 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

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 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Torque Converter, 30-spline, Furnace-brazed, 10.750 in. Bolt Pattern, Chevy, TH350, TH400

Part Number: AAF-ALL26906

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

TRANSMISSION PAN 10R80 ALUM

Part Number: PPE-328053200

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

GM TORQUE CONVERTER, 4L80E, 4L85E, LS MOTOR,3600 STALL

Part Number: FTI-SRLS40086

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission, Manual, Super Duty T-5, Ford, Small Block, Each

Part Number: FMS-M-7003-Z

4.3 out of 5 stars ( 33 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Differential, Trac-Lok, 31-Spline, Ford, 8.8 in., Each

Part Number: FMS-M-4204-F318C

4.92 out of 5 stars ( 37 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Bellhousing, Automatic, Aluminum, GM, Small block/Big Block, TH350/TH400, Each

Part Number: FTI-F1042

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Clutch Slave Cylinder, Aluminum, Black, Chevy, 5.7L, Each

Part Number: NAL-24264180

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Clutch Kits, Quiet Street Dual Disc, 1.375 in. - 10-spline, Organic Disc, 12.250 in. Diameter, Pressure Plate, Flywheel, Dodge, 5.9L Diesel, Kit

Part Number: VAI-S0001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Shifter Cable, Performance, 5 ft. Length, Morse Style, Eyelet/Threaded Ends, Red, Each

Part Number: BMM-80605

4.93 out of 5 stars ( 43 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Flywheel, Cast Iron, 168-Tooth, External Engine Balance, Chevy Big Block Gen V and Gen VI, Each

Part Number: NAL-14096987

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Adapter, Steel, Buick/Oldsmobile, Pontiac Engines, to Chevy TH350/TH400/700R4 Transmissions, Each

Part Number: TRD-0061

4.55 out of 5 stars ( 31 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Flywheel, Billet Steel, 157-Tooth, 50 oz. External Imbalance, Ford, 5.0L, Each

Part Number: FMS-M-6375-C302B

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Differential Rebuild Kit, Trac-Lok, Clutch Pack, Clutch Shims, Ford, 8.8 in., Kit

Part Number: FMS-M-4700-C

4.89 out of 5 stars ( 57 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Automatic Transmission Drums, Direct Drums, Steel, Sprag Assembly, GM, TH400, Kit

Part Number: FTI-F4038

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

1800 HP, 8 RED RACE CLUTCHES & HIGH PERFORMANCE STEELS, MACHINED DRUM, NEW PTFE COATED BUSHINGS & LIP SEALS

Part Number: FTI-F2530

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Automatic Shift Kit, 6L80, 6L80E, 6L90, 6L90E, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Kit

Part Number: TRG-SK6L80

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

GM TORQUE CONVERTER, 6L80E, 6L85E,6L90E TRIPLE CLUTCH 3600STALL

Part Number: FTI-SRL80086-3

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

TORQUE CONVERTER, MOPAR TORQUE CONVERTER, NAG1, HEMI 3200 STALL TWIN DISC

Part Number: FTI-ESRT83200

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Flywheel, Steel, 184-Tooth, 29 lb., Internal Engine Balance, Ford, Big Block FE, Each

Part Number: FMS-M-6375-N427

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Flexplate Bolt, Steel, 11mm x 1.5, 0.800 in. UHL, Chevy, Gen III/IV, LS Series, Automatic Transmission only, Each

Part Number: NAL-11569956

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Dipstick, Locking, Steel, Gold Iridited, Bellhousing Mount, Ford, AOD, Each

Part Number: AAF-ALL69130

4.81 out of 5 stars ( 43 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Torque Converter, Street Master, 2,000 rpm Stall, Ford, Lincoln, Mercury, C-6, Each

Part Number: HUP-35-20

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

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Estimated Ship Date: Monday 4/27/2026 if shipped by air