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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 1332

Transmission, Manual, Tremec TKX, 5-Speed, 26-Spline, 0.68:1 Overdrive, GM, V8, Each

Part Number: REM-TCET17805

4.93 out of 5 stars ( 29 )

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Third Member, 3.70:1 Gear Ratio, Currie TwinTrac, 31-Spline, Nodular Iron Case, Big Bearing Pinion Support, 1350 Yoke, Each

Part Number: CUR-CE-9CT370S50

5.0 out of 5 stars ( 2 )

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Third Member Complete Assembly, Ford 9 in., 3.50:1 Gear Ratio, TwinTrac, 31-Spline, Nodular Iron Case, Big Bearing Pinion Support, 1350 Yoke, Each

Part Number: CUR-CE-9CT350S50

5.0 out of 5 stars ( 1 )

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Manual Transmission Tremec TKX, 5-Speed, Shifter, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: REM-TCET18083

5.0 out of 5 stars ( 5 )

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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 )

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Manual Transmission Tremec TKX, 5 Speed, 26-Spline, Shifter, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: REM-TCET17722

5.0 out of 5 stars ( 2 )

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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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Manual Transmission, TKX, 5 Gears, 1.063 in. - 10-spline Input, 31-spline Output, 3.27:1 First Gear Ratio, Aluminum Case, Tremec TKX, Ford, Each

Part Number: REM-TCET18086

5.0 out of 5 stars ( 3 )

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Manual Transmission, TKX, 5 Gears, 1.125 in. - 26-spline Input, 31-spline Output, 2.87:1 First Gear Ratio, Aluminum Case, Tremec TKX, Ford, Each

Part Number: REM-TCET18084

5.0 out of 5 stars ( 1 )

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Automatic Transmission Controller, Atomic, Chevy, Ford, Lincoln, Mercury, Each

Part Number: MSD-2760

3.74 out of 5 stars ( 19 )

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Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, GM, F-Body, 1967-69, Kit

Part Number: AWR-COGM-F1FX

Not Yet Reviewed

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Third Member, 4.11:1 Gear Ratio, Currie TwinTrac, 31-Spline, Nodular Iron Case, Big Bearing Pinion Support, 1350 Yoke, Each

Part Number: CUR-CE-9CT411S50

4.0 out of 5 stars ( 2 )

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Third Member, 3.89:1 Gear Ratio, Currie TwinTrac, 31-Spline, Nodular Iron Case, Big Bearing Pinion Support, 1350 Yoke, Each

Part Number: CUR-CE-9CT389S50

5.0 out of 5 stars ( 1 )

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Driveshaft Assembly, Rear, Balanced, One-piece, Aluminum, 3.5 in. Diameter, Ford, Modular, Each

Part Number: FMS-M-4602-MGTM

4.89 out of 5 stars ( 18 )

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Axle Housing, Rock Assault 9, 75.625 in. Width, 3.50 in. Diameter, Ford, 9 in., Each

Part Number: TGI-144049-1-KIT

4.33 out of 5 stars ( 3 )

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Automatic Transmission Case, Super Hydra 400, A Option, 0.435 in. Thick PP, Call for Thinner Options, SFI 4.1, Aluminum, Natural, GM TH400, Each

Part Number: REI-SH400DRAG

5.0 out of 5 stars ( 1 )

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Transmission Combo, ProFit, Tremec TKX, 5-Speed, 2.87:1 First Gear, 0.68:1 Fifth Gear, Ford, Cougar, Mustang 1965-73, Kit

Part Number: AWR-COFO-M1EX

Not Yet Reviewed

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Differential Cover, Aluminum, Natural, Bearing Cap Support, GM, 8.2 in., 8.5 in., 10-Bolt, Each

Part Number: SME-8510300NL

4.72 out of 5 stars ( 47 )

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Axle Shaft, Half Shaft Upgrade, Rear, CV-style, 34-spline Inner, 32-spline Outer, Ford, 8.8 in., IRS, Pair

Part Number: FMS-M-4130-MA

5.0 out of 5 stars ( 2 )

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Differential, Trac-Loc, Ford, 9 in., 31-Spline, Each

Part Number: SUM-CTF9TRACL31

4.56 out of 5 stars ( 18 )

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Manual Transmission, TKX, 5 Gears, 1.125 in. - 26-spline Input, 31-spline Output, 3.27:1 First Gear Ratio, Aluminum Case, Tremec TKX, Ford, Each

Part Number: REM-TCET18085

5.0 out of 5 stars ( 1 )

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Gear, Ring and Pinion, 4.29:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0079-1

5.0 out of 5 stars ( 1 )

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Differential Cover, Cap Support, Aluminum, Black, Perfect Launch Logo, GM, 8.2 in., 8.5 in., Each

Part Number: PRO-66668

4.27 out of 5 stars ( 51 )

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Differential Cover, Bearing Girdle, Aluminum, Natural, GM, 12-Bolt, Passenger Car, Kit

Part Number: MSR-7110

4.81 out of 5 stars ( 58 )

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