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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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.

Individual Parts

Results 1 - 25 of 147

Flexplate, 168-Tooth, External Engine Balance, 1-Piece Rear Main Seal, SFI 29.1, Chevy, V6/V8, Each

Part Number: SUM-G104SFI

4.25 out of 5 stars ( 57 )

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: SUM-741001

4.37 out of 5 stars ( 35 )

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Clutch Kit, Organic, 1-1/8 in. Shaft, 10-Spline, 11 in. Diameter Disc, GM, Chevy, Kit

Part Number: SUM-700802

4.88 out of 5 stars ( 17 )

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Axle Bearing, Green Style, Chrysler 8.75 in., Pair

Part Number: SUM-BK1629-1

5.0 out of 5 stars ( 3 )

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Clutch Kit, Organic, 1-1/8 in. Shaft, 10-Spline, 12 in. Diameter Disc, GM, Chevy, Kit

Part Number: SUM-700810

4.17 out of 5 stars ( 6 )

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Clutch Kit, Organic Disc, 11 in. Diameter, 1-1/8 in. Shaft, 26-Spline, Buick, Chevy, Olds, Pontiac, Kit

Part Number: SUM-700808

4.68 out of 5 stars ( 22 )

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Sun Shell. Reaction shell, Automatic Transmission, Steel, 700R4, 4L60E, 4L65E, 4L70E, Each, With hardened neck and splines

Part Number: SUM-705401-1

5.0 out of 5 stars ( 2 )

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Clutch Kit, Street-Strip Performance, 1-1/8 in. Shaft, 10-Spline, 11 in. Organic/Ceramic Disc, GM, Kit

Part Number: SUM-700932

5.0 out of 5 stars ( 2 )

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Clutch Kit, Organic, 1-1/16 in. Shaft, 10-Spline, 10-1/2 in. Diameter Disc, Ford, Kit

Part Number: SUM-700800

4.47 out of 5 stars ( 17 )

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Flywheel, Billet Steel, 153-Tooth, 30 lb., External Engine Balance, 1-Piece Rear Main, Chevy, Small Block, 262, 305, 350, Each

Part Number: SUM-700186-1

4.5 out of 5 stars ( 2 )

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Clutch Kit, Organic, 1-1/16 in. Shaft, 10-Spline, 10 in. Diameter Disc, Ford, Mercury, Kit

Part Number: SUM-700820

5.0 out of 5 stars ( 2 )

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Yoke, Steel, 1350, Weld-In, 3.0 in. Diameter, Driveshaft, Each

Part Number: SUM-730404-1

5.0 out of 5 stars ( 2 )

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Automatic Transmission Overflow Tank, Aluminum, Black Powdercoated, 1 lt. Capacity, Powerglide, Each

Part Number: SUM-300108

4.86 out of 5 stars ( 7 )

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Clutch Kit, Street-Strip Performance, 1 in. Shaft, 23-Spline, 11 in. Organic/Ceramic Disc, Mopar, Kit

Part Number: SUM-700920

5.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.50:1 Ratio, Ford, 9 in., Set

Part Number: SUM-740901

5.0 out of 5 stars ( 9 )

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Gear, Ring and Pinion, 3.70:1 Ratio, Ford, 9 in., Set

Part Number: SUM-740910

3.56 out of 5 stars ( 9 )

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Automatic Transmission, Forward Shift Pattern, Automatic Valve Body, Buick, Olds, Pontiac, TH400, RWD, Each

Part Number: SUM-700401-1

Not Yet Reviewed

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Differential Cover, Rear, Steel, Chrome, Ford, 8.8 in., Kit

Part Number: SUM-730308-1

4.59 out of 5 stars ( 51 )

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt Car, Set

Part Number: SUM-741203

4.38 out of 5 stars ( 8 )

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Automatic Transmission, Forward Shift Pattern, Automatic Valve Body, Chevy, TH400, RWD, Each

Part Number: SUM-700400-1

Not Yet Reviewed

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Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: SUM-741004

4.31 out of 5 stars ( 13 )

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Gear, Ring and Pinion, 4.56:1 Ratio, Ford, 8.8 in., Set

Part Number: SUM-748804

5.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in./7.625 in., Set

Part Number: SUM-741011

4.5 out of 5 stars ( 10 )

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Clutch Kit, Street-Strip Performance, 1-1/8 in. Shaft, 26-Spline, 11 in. Organic/Ceramic Disc, GM, Kit

Part Number: SUM-700930

5.0 out of 5 stars ( 1 )

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