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 45

SCS Gearbox 10-Spline Sportsman Series Quick-Change Gears 102-SPT

SCS Gearbox 10-Spline Sportsman Series Quick-Change Gears 102-SPT

Quick Change Gears, Sportsman, 10-Spline, SAE 8620 Steel, Set 2, 27/28 Teeth, Set

Part Number: SGB-102-SPT

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Summit Racing™ Circle Track Axle Shafts SUM-CTFLAXC31BBS

Axle, Circle Track, 1541 Alloy Steel, Ford, 9 in., 31-Spline, 29.51 in. Length, Each

Part Number: SUM-CTFLAXC31BBS

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Sonnax Smart-Tech Direct Clutch Drum and Shaft Kits 76656-01K

Clutch Drum, Smart-Tech, Direct, Steel, Ford, 4R70E, 4R70W, 4R75E, 4R75W, Kit

Part Number: SOX-76656-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Longfield Ring and Pinion Gears 304255-1-KIT Toyota 8 in. 5.29 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 5.29 4cyl

Part Number: LSA-304255-1-KIT

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

Sonnax Smart-Tech Direct Clutch Drum and Shaft Kits 76656-02K

Clutch Drum, Smart-Tech, Direct, Steel, Ford, 4R70E, 4R70W, 4R75E, 4R75W, AOD, AOD-E, Kit

Part Number: SOX-76656-02K

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Longfield Ring and Pinion Gears 304509-1-KIT Toyota 8 in. 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 4.88 High Pinion

Part Number: LSA-304509-1-KIT

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

Longfield Ring and Pinion Gears 306430-1 Toyota 8.4 in. 5.29 Gears

Longfield Toyota 8.4in Ring & Pinion Gears - 5.29

Part Number: LSA-306430-1

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

Longfield Ring and Pinion Gears 304252-1-KIT Toyota 8 in./Toyota V6 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 4.88 V6

Part Number: LSA-304252-1-KIT

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

Longfield Ring and Pinion Gears 303928-1 Toyota 8 in./Toyota V6 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears - 4.88 V6

Part Number: LSA-303928-1

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

Longfield Ring and Pinion Gears 304253-1-KIT Toyota 8 in./Toyota V6 5.29 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 5.29 V6

Part Number: LSA-304253-1-KIT

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

Longfield Ring and Pinion Gears 140301-3-KIT Suzuki Samurai 4.57 Gears

Longfield Suzuki Samurai Ring & Pinion Gears - 4.57

Part Number: LSA-140301-3-KIT

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

Longfield Ring and Pinion Gears 303929-1 Toyota 8 in./Toyota V6 5.29 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears - 5.29 V6

Part Number: LSA-303929-1

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

Longfield Ring and Pinion Gears 304111-1 Toyota 8 in. 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears - 4.88 4cyl

Part Number: LSA-304111-1

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

Longfield Ring and Pinion Gears TGI-310038 Toyota 8.0 in. IFS 5.29 Gears

Longfield Toyota 8 in. IFS Clamshell Ring and Pinion Gears - 5.29 3.90 & Up Cases

Part Number: LSA-TGI-310038

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

Longfield Ring and Pinion Gears 304510-1-KIT Toyota 8 in. 5.29 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 5.29 High Pinion

Part Number: LSA-304510-1-KIT

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

Longfield Ring and Pinion Gears TGI-310042 Toyota 8.75 in. 4.88 Gears

Longfield Toyota 8.75in Ring & Pinion Gears - 4.88

Part Number: LSA-TGI-310042

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

Longfield Ring and Pinion Gears TGI-310036 Toyota 8.0 in. IFS 4.88 Gears

Longfield Toyota 8 in. IFS Clamshell Ring and Pinion Gears - 4.88 3.90 & Up Cases

Part Number: LSA-TGI-310036

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

Longfield Ring and Pinion Gears 304112-1 Toyota 8 in. 5.29 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears - 5.29 4cyl

Part Number: LSA-304112-1

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

Longfield Ring and Pinion Gears TGI-310043 Toyota 8.75 in. 5.29 Gears

Longfield Toyota 8.75in Ring & Pinion Gears - 5.29

Part Number: LSA-TGI-310043

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

Longfield Ring and Pinion Gears 140302-3-KIT Suzuki Samurai 5.38 Gears

Longfield Suzuki Samurai Ring & Pinion Gears - 5.38

Part Number: LSA-140302-3-KIT

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

Longfield Ring and Pinion Gears 304254-1-KIT Toyota 8 in. 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears with 29-Spline Flange Kit - 4.88 4cyl

Part Number: LSA-304254-1-KIT

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

Longfield Ring and Pinion Gears 306429-1 Toyota 8.4 in. 4.88 Gears

Longfield Toyota 8.4in Ring & Pinion Gears - 4.88

Part Number: LSA-306429-1

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

Longfield Ring and Pinion Gears TGI-310037 Toyota 8.0 in. IFS 4.88 Gears

Longfield Toyota 8 in. IFS Clamshell Ring and Pinion Gears - 4.88 3.73 & Down Cases

Part Number: LSA-TGI-310037

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

Longfield Ring and Pinion Gears 304256-1 Toyota 8 in. 4.88 Gears

Longfield 29-Spline Toyota 8in Ring & Pinion Gears - 4.88 High Pinion

Part Number: LSA-304256-1

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

Yukon Gear & Axle Grizzly Lockers Dana 60 YGLD60-4-35

Grizzly Locker, Dana 60, 35 Spline, 4.56 Up Ratio, Each

Part Number: YGA-28005

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

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