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 139

S&S Cycle Sprocket Shaft Oil Seals 31-4010

S&S Cycle 1970+ BT 1.750in x 2.507in x .3130in Left Main Bearing Seal

Part Number: SSY-31-4010

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

S&S Cycle Sprocket Shaft Oil Seals 31-4110

MAIN BEARING OIL SEAL 5PK

Part Number: SSY-31-4110

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Powertrax Lock-Right Lockers GM 8.2 Inch 1940-LR

Differential, Lock-Right, Locker, 28-Spline, GM, 8.2 in., Each

Part Number: PWT-1940-LR

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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SPEC Stage 1 Clutch Kits for 2013-2014 BRZ, FR-S - SU331

Clutch Kit, Stage 1, Organic, Full Face/Sprung Hub, Scion, Subaru, Kit

Part Number: SXC-SU331

Not Yet Reviewed

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Motive Gear Ring and Pinion Sets GM10-411A GM 8.5/8.6 in. 4.11 Gears

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-411A

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10-373 GM 8.5/8.6 in. 3.73 Gears

Gear, Ring and Pinion, 3.73 Ratio, GM, 8.5 in/8.6 in., Set

Part Number: MGR-GM10-373

4.74 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10-342A GM 8.5/8.625 in. 3.42 Gears

Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-342A

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10-456A GM 8.5/8.625 in. 4.56 Gears

Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-456A

4.46 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM12-373 GM 8.875 in. (12-bolt) truck 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 12-Bolt, Truck, Set

Part Number: MGR-GM12-373

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10.5-410 GM 10.5 in. (14-bolt) 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 10.5 in., 14-Bolt, Fits 4.10:1 and Numerically Lower Carrier, Set

Part Number: MGR-GM10-5-410

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM7.5-410A GM 7.5/7.625 in. 4.10 Gears

Ring and Pinion Gears, GM 7.5/7.625 in., 4.10:1 Ratio, 27-spline, Standard Rotation, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Set

Part Number: MGR-GM7-5-410A

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets F9-350 Ford 9 in. 3.50 Gears

Gear, Ring and Pinion, 3.50:1 Ratio, Ford, 9 in., Set

Part Number: MGR-F9-350

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets F8.8-488 Ford 8.8 in. 4.88 Gears

Ring and Pinion Gears, 4.88:1 Ratio, Standard Ring Gear Rotation, Ford 8.8 in., Set

Part Number: MGR-F8-8-488

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM9.5-373 GM 9.5 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-373

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets D60-354 Dana 60 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 60, Set

Part Number: MGR-D60-354

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets C9.25-392 Chrysler 9.25 in. 3.92 Gears

Ring and Pinion, Chrysler 9.25 in., 3.92:1 Ratio, Standard Rotation, Set

Part Number: MGR-C9-25-392

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets F9-411A Ford 9 in. 4.11 Gears

Ring and Pinion Gears, Ford 9 in., 4.11:1 Ratio, 28-spline, Standard Rotation, Rear, Ford, Lincoln, Mercury, Set

Part Number: MGR-F9-411A

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets F8.8-373 Ford 8.8 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, Ford, 8.8 in., Set

Part Number: MGR-F8-8-373

Not Yet Reviewed

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets D44-354 Dana 44 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 44, Set

Part Number: MGR-D44-354

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Oct 9, 2025 if ordered today

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Estimated Ship Date: Oct 9, 2025 if ordered today

Motive Gear Ring and Pinion Sets GM12-342 GM 8.875 in. (12-bolt) truck 3.42 Gears

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.875 in. Truck, Set

Part Number: MGR-GM12-342

Not Yet Reviewed

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets F9.75-355 Ford 9.75 in. 3.55 Gears

Gear, Ring and Pinion, 3.55:1 Ratio, Ford, 9.75 in., Set

Part Number: MGR-F9-75-355

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets D44-513 Dana 44 5.13 Gears

Gear, Ring and Pinion, 5.13:1 Ratio, Dana 44, Set

Part Number: MGR-D44-513

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets C9.25-355 Chrysler 9.25 in. 3.55 Gears

Gear, Ring and Pinion, 3.55:1 Ratio, Chrysler, 9.25 in., Set

Part Number: MGR-C9-25-355

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM12-411 GM 8.875 in. (12-bolt) truck 4.11 Gears

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 12-Bolt, Truck, Set

Part Number: MGR-GM12-411

Not Yet Reviewed

Estimated Ship Date: Oct 8, 2025 if ordered today

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Estimated Ship Date: Oct 8, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Richmond Gear EXCel Ring and Pinion Sets 12BT410 GM 8.875 in. (12-bolt) truck 4.10 Gears

5 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Motive Gear Ring and Pinion Sets GM10-273 GM 8.5/8.6 in. 2.73 Gears

Gear, Ring and Pinion, 2.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-GM10-273

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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