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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 - 25 of 202

Transmission Pan Kit, Deep Type, Drain Plug, A319 Aluminum, Natural, Finned with Logo, GM TH400, Each

Part Number: TFS-1001

4.73 out of 5 stars ( 30 )

Estimated Ship Date: Today

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Replacement Seal Kit for Mighty Prime

Part Number: BCN-1001

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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FLEXIBLE JOINT 10-01 HYU/KIA

Part Number: BCK-103-3118

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Clutch Kits, Twin Disc, 246mm, Organic, Chromoly Flywheel, Ford Coyote, 850 lb.ft.Torque Capacity, Tremec T56 , TKO, Kit

Part Number: TIL-55-1001

Not Yet Reviewed

Estimated Ship Date: Today

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Flywheels, OE Replacement, Ductile Iron, 164-tooth, 29 lbs., Jeep, 4.2L, Each

Part Number: PFT-50-1001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Auto Trans Shift Arm; Selector Shaft And Arm; For Ford AOD; 5/16 in. Slot

Part Number: LOK-ATA-1001

3.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Shifter Relocation Lever, T-56, Offset, Tremec 6060, Each

Part Number: MCL-82-1001

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Crankshaft, Ls/Lt Clutch Kit 8-Bolt Crank

Part Number: HAY-93-1001

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

U-Joint, Heavy-Duty, Steel, 4 Grooved Bearing Cap Style, For use on Honda®, Polaris, Each

Part Number: RRA-72-1001

Not Yet Reviewed

Estimated Ship Date: Today

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U-Joint, Greasable, Arctic Cat, Kawasaki, Suzuki, Each

Part Number: ALB-19-1001

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

Axle Shaft, CV-Style, Replacement, Each

Part Number: AAZ-60-1001

Not Yet Reviewed

Estimated Ship Date: Oct 31, 2025 if ordered today

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Estimated Ship Date: Oct 31, 2025 if ordered today

Clutch Kits, Street 450 Clutch Conversion Kits, Performance, 1.125 in. - 26-spline, Organic Disc, Pressure Plate, Chevrolet, Pontiac, Kit

Part Number: HAY-91-1001

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

HUB KIT

Part Number: ALB-58-1001

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Wheel Bearing and Seal, Front, Harley-Davidson®, Kit

Part Number: ALB-25-1001

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

Shaft Bearing Kit, Polaris, Kit

Part Number: ALB-14-1001

Not Yet Reviewed

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Axle Shaft Assembly, Front Driver Side, Steel, Dana Super 60, Ford, Each

Part Number: SDH-10013781

4.76 out of 5 stars ( 38 )

Estimated Ship Date: Today

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FLYWHEEL, STEEL, FORD MOD (8 BOLT), ST-246 CLUTCH, T56/TKO, 164T

Part Number: TIL-51-1001

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Axle Shaft Assembly, Front Passenger, 35-spline, Steel, 45.960 in. Length, Dana 60, Ford, Each

Part Number: SDH-10013778

4.74 out of 5 stars ( 39 )

Estimated Ship Date: Today

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Flexplate; Performance, Neutral Balance, 168 Tooth, Chevy, V8, Each

Part Number: HAY-10-010

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Ultimate Dana 44 Axle Assembly (07-18) Wrangler JK 4.56 Ratio) Front - ELD

Part Number: SDH-10010520

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

Ultimate Dana 44 Axle Assembly (07-18) Wrangler JK 4.88 Ratio) Front - ELD

Part Number: SDH-10010521

Not Yet Reviewed

Estimated Ship Date: Sep 8, 2025 if ordered today

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Estimated Ship Date: Sep 8, 2025 if ordered today

Spindles, Disc Brake, Stock Height, Steel, Chevy, Corvette, Each

Part Number: AUP-HB1001

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Shifters, Automatic Transmission, Floor Mount, Cable Operated, Detent, Reverse Lockout, Horseshoe Knob, TH350, TH400, Chevy, Kit

Part Number: SIW-SW1001

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Driveshaft, Heavy-Duty, Assembled, Two-piece Style, Steel, Differential Yoke, Toyota, Kit

Part Number: TGI-100130-1-KIT

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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