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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.

Individual Parts

Results 1 - 25 of 92

Flexplate and Hub Extension, 168-Tooth, LS Chevy Engine to GM Transmission, Each

Part Number: ADD-712500A4

3.6 out of 5 stars ( 5 )

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FLEXPLATE BOLT KIT, GM LS, 4.8, 5.3, 6.0L, LS1, LS2, LS4, LS6, M11-1.5 x .880 UHL, Set of 8

Part Number: PQX-1003908

Not Yet Reviewed

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Flexplate, Gold Series, Chromoly, 168-Tooth, Internal Engine Balance, SFI 29.1, TH350, 700R4, 4L60E, Chevy, LS, Each

Part Number: PQX-1834600

4.0 out of 5 stars ( 4 )

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Flexplate, Heavy-Duty, Steel, Internal Balance, 168 Tooth, SFI 29.1, Chevy, Each

Part Number: HAY-10-030

4.38 out of 5 stars ( 8 )

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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 )

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Clutch Kit, Concept 10.5 Dual-Disc Clutch, 1.125 in. - 26-spline, Organic Disc, Pressure Plate, Chevy, Small Block, Kit

Part Number: RAM-50-2125

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Clutch Kits, Twin Disc, 246mm, Cerametallic, Chromoly Flywheel, Chevrolet LS 6-bolt, 1250 lb.ft.Torque Capacity, Tremec T56 , TKO, Kit

Part Number: TIL-55-2004

Not Yet Reviewed

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Clutch Kit, Organic, 1 1/8 in.- 26-Spline, 11 in. Disc, Chevy, Pontiac, 5.7L, LS1, Kit

Part Number: RAM-88931HDX

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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FLEXPLATE, CHROMOLY, SFI 29.1, GM LS Series, 8-Bolt Crank, 168T, Internal Balance, TH350, TH400, 700R4, and 4L60E, Chevy, Each

Part Number: PQX-1836400

3.5 out of 5 stars ( 2 )

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Flexplate Bolts, 11mm x 1.5 Thread, 12-Point, .880 Length, GM Gen III/IV, Set of 6

Part Number: PQX-1003907

Not Yet Reviewed

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Clutch Kit, Powergrip, Metallic/Organic, 1 1/8 in.- 26-Spline, 11 in. Disc, Chevy, Pontiac, 5.7L, LS1, Kit

Part Number: RAM-98931

5.0 out of 5 stars ( 2 )

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Flexplate, Transmission Installation Kit, Flexplate, Transmission Cover, 6-Bolt Crankshaft, 4L60, 4L65, 4L70, Chevy, LS, Kit

Part Number: NAL-19259117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Filter Magnet, Transmission Pan, GM, Hummer, Isuzu, Saab, Saturn, Each

Part Number: ADO-29535617

5.0 out of 5 stars ( 2 )

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Flywheel Bolts, 12-Point, 11mm x 1.5 Thread, GM LS, Set of 6

Part Number: MCL-1556

3.0 out of 5 stars ( 2 )

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Oil Seal, Rubber, 20.69mm Inner Diameter, 4.20mm Width, Buick, Chevy, GMC, Hummer, Pontiac, Each

Part Number: NAL-12584922

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Seal, Automatic Transmission Shift Shaft, Steel/Rubber, GM, Each

Part Number: NTL-8792S

3.67 out of 5 stars ( 3 )

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Automatic Transmission Shift Shaft Seal, Nitrile, Buick, Cadillac, Chevy, Each

Part Number: ADO-8792S

1.0 out of 5 stars ( 2 )

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Transmission Filter, Direct-Fit, Kit

Part Number: ATP-B161

5.0 out of 5 stars ( 4 )

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Flywheel Bolts, Steel, Black Oxide, 12-Point Head, 11mm x 1.5 in. Chevy, LS, Set of 6

Part Number: RAM-528

Not Yet Reviewed

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Clutch Kit, Powergrip HD, Metallic, 1 1/8 in.- 26-Spline, 11 in. Disc, Chevy, Pontiac, 5.7L, LS1, Kit

Part Number: RAM-98931HD

Not Yet Reviewed

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Clutch Kit, Organic, HD, 12 in. GM LS, Kit

Part Number: RAM-88935

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

Wheel Hub and Bearing Assembly, Front, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Saturn, Each

Part Number: MOG-513179

4.65 out of 5 stars ( 26 )

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Clutch Kit, Metallic/Organic, Powergrip, 12 in. GM LS, Kit

Part Number: RAM-98935

Not Yet Reviewed

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Clutch Assembly, ST-246 Twin Disc, 9.7 in. Dia., Sprung Organic, w/Billet Flywheel, LS 6-bolt, 850 lbs.-ft. Capacity, Tremec T56 , TKO, Chevy, Kit

Part Number: TIL-55-1004

5.0 out of 5 stars ( 5 )

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CV Joint Boot, Rubber, Each

Part Number: RNB-614-003

1.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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