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.

Individual Parts

Part Groups

Results 1 - 25 of 243

BMR Cradle Bushing Lockout Kits for 2008-2022 CHALLENGER, 2006-2023 CHARGER - SCB110

Rear Cradle Bushings, Lockout, Aluminum, Black Anodized, Dodge, Kit

Part Number: BMR-SCB-110

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits SK 4L60E

Shift Kit, Shift Improvement, ISO-CON Valve, GM, 4L60E, 4L65E, 4L70E, 4L75E, Each

Part Number: TRG-SK4L60E

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits 700-2&3

Shift Kit, Automatic, Full Manual, GM, 700R4, Towing, Competition, Pro Sreet, Each

Part Number: TRG-700-2-3

4.32 out of 5 stars ( 25 )

Estimated Ship Date: Tomorrow

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Powertrax Lock-Right Lockers GM 8.875 Inch (12-bolt), Car/Truck 1910-LR

Differential, Lock-Right, Locker, 30-Spline, GM, 12-Bolt, Car/Truck, Each

Part Number: PWT-1910-LR

4.13 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Powertrax Lock-Right Lockers GM 8.5 Inch 1920-LR

Differential, Lock-Right, Locker, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-1920-LR

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits 4L80E-3

Shift Kit, Stick Type, Full Manual, GM, 4L80E, Competition, Off-Road, Pro-Street, Each

Part Number: TRG-4L80E-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Powertrax Lock-Right Lockers Dana 44 2410-LR

Differential, Lock-Right, Locker, 30-Spline, Dana 44, Open, Each

Part Number: PWT-2410-LR

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Ford Performance Parts Transmission Chrome Dipsticks M-6750-E303

Transmission Dipstick, Steel, Chrome, Ford, Lincoln, Mercury, C-6, Each

Part Number: FMS-M-6750-E303

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits 400-3

Shift Kit, Performance, Full Manual or Automatic Capability, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH400

Part Number: TRG-400-3

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Powertrax Lock-Right Lockers Ford 10.25 Inch 1840-LR

Differential, Lock-Right, Locker, 35-Spline, Ford, 10.25 in., Each

Part Number: PWT-1840-LR

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits 350C-1&2

Shift Kit, Performance, Buick, Chevy, Oldsmobile, Pontiac, GMC, TH350C, 1981-91, Kit

Part Number: TRG-350C-1-2

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits SK 4L80E

Automatic Transmission Shift Set, Performance, with EPC Boost Pressure Relief Valve System, for 4L80E, 4L85E, Kit

Part Number: TRG-SK4L80E

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits RE5RO5A-HD2

Shift Kit, Automatic Type, Infiniti, for Nissan, Jatco, 5-Speed, Kit

Part Number: TRG-RE5R05A-HD2

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits SK 45RFE-A

Automatic Shift Kit, 45RFE, 545RFE, 68RFE, Chrysler, Dodge, Jeep, Ram, Kit

Part Number: TRG-SK45RFE

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits SK 400

Automatic Shift Kit, THM400, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Car, Kit

Part Number: TRG-SK400

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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B&M Shift Improver Kits 40262

Transmission Upgrade Kit, Shift Improver, Ford, C-6, Each

Part Number: BMM-40262

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Powertrax Lock-Right Lockers Chrysler 9.25 Inch 1220-LR

Differential, Lock-Right, Locker, 31-Spline, Mopar, 9.25 in., Each

Part Number: PWT-1220-LR

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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J.W. Performance Transmission Bellhousing Bolts 92466

Bellhousing to Transmission Bolts, TH350, TH400, Front Pump, Set of 8

Part Number: JPT-92466

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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J.W. Performance Transmission Bellhousing Bolts 92450-K

Bolt, Bellhousing Type, Allen/Hex Head, Steel, Black Oxide/Zinc Plated, 3/8-16 in. Thread, Buick, Chevy, Each

Part Number: JPT-92450-K

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits TF-3

Shift Kit, Full Manual, Chrysler, Torqueflite, Instant Full Race, Each

Part Number: TRG-TF-3

4.83 out of 5 stars ( 6 )

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Powertrax Lock-Right Lockers GM 7.5/7.625 Inch 1931-LR

Differential, Lock-Right, Locker, 28-Spline, GM, 7.625 in., Each

Part Number: PWT-1931-LR

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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B&M Shift Improver Kits 35265

Transmission Upgrade Kit, Shift Improver, GM, 200-4R, Each

Part Number: BMM-35265

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TransGo Performance Shift Kits 67-3

Automatic Transmission Shift Set, Stick Type, Full Manual, Competition, Off-Road/Pro-Street, C6 Transmissions, No Diesel, Ford, Lincoln, Mercury, Each

Part Number: TRG-67-3

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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