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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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 - 15 of 15

Yokes, End Yokes, Spicer 1310, 29-spline Inner, Steel, Front Differential or Rear Differential Position, Dana 60/Dana 70, Each

Part Number: SDH-2-4-3801-1X

Not Yet Reviewed

Estimated Ship Date: Today

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Yoke, End Yoke, Spicer 1350, 10-Spline, Steel, Each

Part Number: SDH-3-4-3801-1

Not Yet Reviewed

Estimated Ship Date: Sep 4, 2025 if ordered today

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Estimated Ship Date: Sep 4, 2025 if ordered today

SET 1 GEARS FOR BABY GRAND

Part Number: WPP-3801

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Transfer Case Adapter, Ford, New Process 435 Transmission, Dana 300 Transfer Case, Kit

Part Number: ADD-50-3801

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

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Estimated Ship Date: Oct 20, 2025 if ordered today

Grease Seal, Replacement, for kits: 140/1033B/140-3445B/140-2992B, Each

Part Number: WIL-380-1165

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Hub Bearing Seal, Replacement, 2.000 in. I.D., 2.562 in. O.D., Each

Part Number: WIL-380-10792

Not Yet Reviewed

Estimated Ship Date: Today

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Grease Seal, Replacement, for kits: 140/1501B/140-8583/140-5883B, Each

Part Number: WIL-380-1562

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hub Seal

Part Number: WIL-380-11971

Not Yet Reviewed

Estimated Ship Date: Today

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Dana 2-4-3801-1X-AZ Loc

Part Number: AUB-908906

Not Yet Reviewed

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

DIFFERENTIAL END YOKE

Part Number: SDH-2-4-3801X

Not Yet Reviewed

Estimated Ship Date: Sep 2, 2025 if ordered today

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Estimated Ship Date: Sep 2, 2025 if ordered today

Seal Cadillac,Oldsmobile 99-02

Part Number: FWB-SS3801

Not Yet Reviewed

Estimated Ship Date: Aug 21, 2025 if ordered today

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Estimated Ship Date: Aug 21, 2025 if ordered today

SEAL, OIL, HUB, 1.875x2.623x.312

Part Number: WIL-380-12622

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

SEAL, OIL, HUB, 2.00x2.623x.312

Part Number: WIL-380-12650

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

SEAL, OIL, DRAG HUB, 1.875x2.754x.250

Part Number: WIL-380-12733

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

SEAL, OIL, HUB, 1.750x2.623x.311

Part Number: WIL-380-14192

Not Yet Reviewed

Estimated Ship Date: Aug 20, 2025 if ordered today

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Estimated Ship Date: Aug 20, 2025 if ordered today

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