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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Proform Perfect Launch 10 Bolt GM 8.2/8.5 Inch Differential Cover 66668

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 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Summit Racing™ Floor Mount Shifter Platform SUM-700072

Shifter Mounting Pedestal, Quick Pin Removable, Adjustable, Steel, Floor Mount, Natural, Universal Race, Each

Part Number: SUM-700072

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Perfect Launch 10 Bolt GM 7.5/7.625 Inch Differential Cover 66667

Differential Cover, Aluminum, Black, Perfect Launch Logo, GM, 7.50 in., 10-Bolt, Each

Part Number: PRO-66667

4.58 out of 5 stars ( 33 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Perfect Launch 12 Bolt GM 8.875 Inch Differential Cover 69502

Differential Cover, Aluminum, Black Powdercoated, GM, 8.875 in., Passenger Car, Kit

Part Number: PRO-69502

4.55 out of 5 stars ( 20 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 10 Bolt GM 8.2/8.5 Inch Differential Cover 141-696

Differential Cover, Aluminum, Black Crinkle, Bowtie Logo, GM, 8.2 in., 8.5 in., 10-Bolt, Each

Part Number: PRO-141-696

3.93 out of 5 stars ( 15 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Perfect Launch 10 Bolt Ford 8.8 Inch Differential Cover 69501

Differential Cover, Cap Support, Aluminum, Black, Perfect Launch Logo, Ford, 8.8 in., Each

Part Number: PRO-69501

4.69 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Transmission Dipsticks 66182

Transmission Fluid Dipstick, Bellhousing Mount, Locking, Black Steel Tube, Black Plastic Handle, Chevy, GMC, TH400, Each

Part Number: PRO-66182

3.7 out of 5 stars ( 20 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 12 Bolt GM 8.875 Inch Differential Cover 141-697

Differential Cover, Aluminum, Black Crinkle, Bowtie Logo, GM, 8.875 in. Passenger Car, Each

Part Number: PRO-141-697

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Transmission Dipsticks 66181

Transmission Dipstick, Bellhousing Mount, Locking, Steel, Black CED Finish, Chevy, TH350

Part Number: PRO-66181

3.56 out of 5 stars ( 34 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 10 Bolt GM 7.5/7.625 Inch Differential Cover 141-695

Differential Cover, Aluminum, Black Crinkle, Bowtie Logo, GM, 7.50 in., 10-Bolt, Each

Part Number: PRO-141-695

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Perfect Launch 10 Bolt Dana 60 Differential Cover 69504

Differential Cover, Perfect Launch, 10-bolt, Aluminum, Black, Dana 60, Each

Part Number: PRO-69504

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 12 Bolt GM 8.875 Inch Differential Cover 141-699

Differential Cover, Aluminum, Natural, Bowtie Logo, GM 8.875 in.(12-bolt) Passenger Car, Each

Part Number: PRO-141-699

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 10 Bolt GM 8.2/8.5 Inch Differential Cover 141-698

Differential Cover, Aluminum, Natural, Bowtie Logo, GM 8.2/8.5 in. Each

Part Number: PRO-141-698

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Transmission Dipsticks 66172

Transmission Dipstick, Bellhousing Mount, Locking, Steel, Black, Plastic Handle, Chevy, Powerglide, Each

Part Number: PRO-66172

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Flywheel Dust Covers 66621

Flywheel Dust Cover, Steel, Chrome, Chevy, TH350, TH400, Each

Part Number: PRO-66621

4.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Chevy Bowtie 10 Bolt GM 7.5 Inch Differential Cover 141-694

Differential Cover, Aluminum, Natural, Bowtie Logo, GM 7.5 in. Each

Part Number: PRO-141-694

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Transmission Dipsticks 66175

Transmission Fluid Dipstick, Bellhousing Mount, Locking, Chrome Steel Tube, Black Plastic Handle, Chevy, TH350, Each

Part Number: PRO-66175

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Proform Transmission Dipsticks 66173

Transmission Dipstick, Bellhousing Mount, Locking, Steel, Gold Iridited, Plastic Handle, Chevy, Powerglide

Part Number: PRO-66173

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Proform Parts Transmission Fluid Dipsticks 66199

Positive-Locking Transmission Dipstick; Ford C-6 SB; Black

Part Number: PRO-66199

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Proform Parts Transmission Fluid Dipsticks 66169

Positive-Locking Transmission Dipstick; Chrysler TF727 SB; Black

Part Number: PRO-66169

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Proform Parts Transmission Fluid Dipsticks 66196

Positive-Locking Transmission Dipstick; Ford C-4 Case Fill; Black

Part Number: PRO-66196

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Proform Parts Differential Covers 69503

12 Bolt Differential Cover

Part Number: PRO-69503

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

BCA Bearings by NTN Wheel Hub Repair Kits for 2001-2012 ESCAPE, 2005-2011 MARINER, 2001-2011 TRIBUTE - WE61635

Wheel Hub Repair Kit, OE form, fit & function wheel hub kit.

Part Number: NTN-WE61635

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

BCA Bearings by NTN Wheel Bearing and Hub Assemblies WE60479

Wheel Bearing and Hub Assembly, OE form, fit & function wheel hub unit.

Part Number: NTN-WE60479

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

BCA Bearings by NTN Differential Rebuild Master Kits for 1984-1985 4RUNNER, PICKUP - NBRA351MK

Axle Differential Bearing and Seal Kit, OE form, fit & function bearing & seal unit.

Part Number: NTN-NBRA351MK

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

BCA Bearings by NTN Wheel Bearing and Hub Assemblies WE61815

Wheel Bearing and Hub Assembly, OE form, fit & function wheel hub unit.

Part Number: NTN-WE61815

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

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