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.

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Results 1 - 25 of 436

Tremec T-5 Manual Transmissions 1352-000-251

Manual Transmission, Tremec, T-5, 5 Speed, 1.063 in. Input Shaft Diameter, 10 Spline Input, 28 Spline Output, Ford, Each

Part Number: REM-1352-000-251

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 376000

TCI Trans-Scat Valve Body Kits 376000

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, GMC, Oldsmobile, Pontiac, 700R4, Each

Part Number: TCI-376000

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 360000

Transmission Upgrade Kit, Trans-Scat, Ford, Lincoln, Mercury, C-6, Each

Part Number: TCI-360000

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 436000

Transmission Upgrade Kit, Trans-Scat, Ford, Lincoln, Mercury, AOD, Each

Part Number: TCI-436000

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 436001

Valve Body Kit, Trans-Scat®, For, AODE, Kit

Part Number: TCI-436001

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 220000

Transmission Upgrade Kit, Trans-Scat, AMC, Chrysler, 727, A-904, Each

Part Number: TCI-220000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 350000

Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, GMC, TH350, Each

Part Number: TCI-350000

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 376002

Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, 4L60E, Each

Part Number: TCI-376002

2.75 out of 5 stars ( 4 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 376001

Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, 4L60E, LT1, LS1, Each

Part Number: TCI-376001

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Trans-Scat Valve Body Kits 276005

Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, Bentley, Hummer, Jaguar, Rolls Royce, 4L80E, Each

Part Number: TCI-276005

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 220500

Transmission Upgrade Kit, Trans-Scat, Dodge, Jeep, A-500, A-518, Each

Part Number: TCI-220500

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 280000

Transmission Upgrade Kit, Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, Powerglide, Each

Part Number: TCI-280000

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 386000

Transmission Upgrade Kit, Trans-Scat, Buick, Chevy, Oldsmobile, Pontiac, 200-4R, Each

Part Number: TCI-386000

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

TCI Trans-Scat Valve Body Kits 276000

Transmission Upgrade Kit, Trans-Scat, Chevy, GMC, Bentley, Hummer, Jaguar, Rolls Royce, 4L80E, Each

Part Number: TCI-276000

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

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Estimated Ship Date: Dec 11, 2025 if ordered today

B&M Automatic Transmission Deep Pans for 2019-2024 SIERRA 1500, SILVERADO 1500 - 71399

Transmission Pan, Automatic, Cast Aluminum, Black, 3.82 qt. Additional Fluid, GM, 8L90, 8L90E, Each

Part Number: BMM-71399

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

B&M Automatic Transmission Deep Pans for 2019-2024 SIERRA 1500, SILVERADO 1500 - 70399

Transmission Pan, Automatic, Cast Aluminum, Natural, 3.82 qt. Additional Fluid, GM, 8L90, 8L90E, Each

Part Number: BMM-70399

Not Yet Reviewed

Estimated Ship Date: Nov 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 2025 if ordered today

BD Diesel Transmission Pans 1061525

Transmission Pan, Aluminum, Black Wrinkled, Deep, Mopar, 68RFE, Each

Part Number: BDD-1061525

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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B&M Pro Ratchet Shifters 80842

Automatic Shifter, Pro Ratchet, Aluminum Cover, Chevy, Mopar, Ford, Lincoln, Mercury, Each

Part Number: BMM-80842

4.71 out of 5 stars ( 72 )

Estimated Ship Date: Tomorrow

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B&M Automatic Transmission Deep Pans 10280

Transmission Pan, Deep, Aluminum, Natural, Chrysler, Torqueflite 727, A-518, 618, 44RH, 48RE, Each

Part Number: BMM-10280

4.63 out of 5 stars ( 80 )

Estimated Ship Date: Tomorrow

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TransGo Automatic Transmission Reprogramming Kits 6L80-TOW&PRO

Automatic Transmission Shift Kits, Reprogramming Kit, Performance/Tow/Haul, GM, 6L45, 6L50, 6L80, 6L90, Kit

Part Number: TRG-6L80-TOW-PRO

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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McLeod RST Street Twin Clutch Kits 6913-07

Clutch Kit, RST, 1 1/8 in. x 26-Spline, 9.687 in. Diameter Disc, Chevrolet, Ford, Kit

Part Number: MCL-6913-07

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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ARB Air Locker 35 Spline Differential Dana 60-HD RD166

Differential Carrier, Air Locker, Nodular Iron, Dana 60-HD, Kit

Part Number: ARB-RD166

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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TCI Transmission Pans 378000

Automatic Transmission Pan, Deep, Aluminum, Natural, GM, 700R4, 4L60E, Each

Part Number: TCI-378000

3.73 out of 5 stars ( 15 )

Estimated Ship Date: Tomorrow

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McLeod RXT Street Twin Clutch Kits 6923-07

Clutch Kit, RXT, 1 1/8 in. x 26-Spline, 9.688 in. Diameter Disc, Kit

Part Number: MCL-6923-07

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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B&M Automatic Transmission Deep Pans 71395

Automatic Transmission Pan, Hi-Tek Deep, Aluminum, Black Anodized Finish, 4 qt. Capacity Increase, Ram, 8HP70, 8HP75, 845RE, 850RE, Each

Part Number: BMM-71395

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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