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Performance & Replacement Transmission & Drivetrain Parts

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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.

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Individual Parts

Part Groups

Results 1 - 25 of 2000 +

Spicer Drivetrain Products Differential Inner Gear Kits 2003857

Spicer Drivetrain Products Differential Inner Gear Kits 2003857

Spicer Drivetrain Products Differential Inner Gear Kits 2003857

Differential Carrier Rebuild Kit, Trac-Lok, 35-spline, Clutch Pack, Clutch Shims, Rear, Dana 80, Kit

Part Number: SDH-2003857

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Moser Engineering Inner Housing Seals 7S151

Moser Engineering Inner Housing Seals 7S151

Moser Engineering Inner Housing Seals 7S151

Axle Housing Seals, Big Ford, Oldsmobile, Pontiac, Sealed Ball Bearing, Inner Housing Seal, Each

Part Number: MSR-7S151

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Trail-Gear Rock Assault Inner Axle Seals 144020

Trail-Gear Rock Assault Inner Axle Seals 144020

Trail-Gear Rock Assault Inner Axle Seals 144020

Axle Seal, Rock Assault, Inner, Rear, Dana 60, Ford 9 in., Each

Part Number: TGI-144020

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits 707321X

Spicer Drivetrain Products Differential Inner Gear Kits 707321X

Spicer Drivetrain Products Differential Inner Gear Kits 707321X

Differential Carrier Rebuild Kits and Spider Gears, Differential Inner Gear Kits, Dana 35, Side Gears, Open, 27-spline, 10-bolt, Jeep, Kit

Part Number: SDH-707321X

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits 2021290

Spicer Drivetrain Products Differential Inner Gear Kits 2021290

Spicer Drivetrain Products Differential Inner Gear Kits 2021290

Differential Carrier Rebuild Kits and Spider Gears, Differential Inner Gear Kits, Dana 70, 32-spline, 10-bolt, Rear, Ford, Kit

Part Number: SDH-2021290

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Yukon Gear & Axle Replacement Inner Dust Shields YSPBF-037

Yukon Gear & Axle Replacement Inner Dust Shields YSPBF-037

Yukon Gear & Axle Replacement Inner Dust Shields YSPBF-037

D30 PLASTIC FRONT AXLE DUST SHIELD for INNER AXLE SHAFT

Part Number: YGA-33442

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits 706027X

Spicer Drivetrain Products Differential Inner Gear Kits 706027X

Spicer Drivetrain Products Differential Inner Gear Kits 706027X

Spider Gear Kit, Open Differential, Dana 44, 30 Spline, Kit

Part Number: SDH-706027X

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits for 2007-2017 WRANGLER, 2018 WRANGLER JK - 2009155

Spicer Drivetrain Products Differential Inner Gear Kits for 2007-2017 WRANGLER, 2018 WRANGLER JK - 2009155

Spicer Drivetrain Products Differential Inner Gear Kits for 2007-2017 WRANGLER, 2018 WRANGLER JK - 2009155

Spider Gear Kits, Dana Super 44, 30 Spline, Kit

Part Number: SDH-2009155

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Moser Engineering Inner Housing Seals 7S137

Moser Engineering Inner Housing Seals 7S137

Moser Engineering Inner Housing Seals 7S137

Seal, Inner Housing, 1.377 in. I.D. Small Ford, Each

Part Number: MSR-7S137

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits 708184

Spicer Drivetrain Products Differential Inner Gear Kits 708184

Spicer Drivetrain Products Differential Inner Gear Kits 708184

Differential Carrier Rebuild Kits and Spider Gears, Differential Inner Gear Kits, Dana 35, Limited Slip, Traction Loc, 27-spline, 10-bolt, Jeep, Kit

Part Number: SDH-708184

4.22 out of 5 stars ( 9 )

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Spicer Drivetrain Products Differential Inner Gear Kits 707063X

Spicer Drivetrain Products Differential Inner Gear Kits 707063X

Spicer Drivetrain Products Differential Inner Gear Kits 707063X

Differential Inner Gear Kit 35 Spline: Dana 80 Type: Open 94-01 D2500/W2500, 89-13 E350/F350 & E450/F450

Part Number: SDH-707063X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Spicer Drivetrain Products Differential Inner Gear Kits 2005962

Spicer Drivetrain Products Differential Inner Gear Kits 2005962

Spicer Drivetrain Products Differential Inner Gear Kits 2005962

Differential Rebuild Kit, Dana 30, 27 Spline, Kit

Part Number: SDH-2005962

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Wiseco Inner Clutch Hubs WPP4004

Made in the USA

Wiseco Inner Clutch Hubs WPP4004

Wiseco Inner Clutch Hubs WPP4004

Clutch Hub, Inner, Billet Aluminum, Yamaha, Each

Part Number: WIS-WPP4004

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits 2021289

Spicer Drivetrain Products Differential Inner Gear Kits 2021289

Spicer Drivetrain Products Differential Inner Gear Kits 2021289

Differential Inner Gear Kit (Dana 60 & 70 Pwr Lok Limited Slip) 35 Spline

Part Number: SDH-2021289

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Allstar Performance Replacement Inner Seals ALL72108

Allstar Performance Replacement Inner Seals ALL72108

Allstar Performance Replacement Inner Seals ALL72108

Inner Seal, Replacement, Aluminum Axle Housing Seal, Steel/Rubber, 1.125 in. I.D., Each

Part Number: AAF-ALL72108

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Spicer Drivetrain Products Differential Inner Gear Kits for 1994-2004 GRAND CHEROKEE - 707384X

Spicer Drivetrain Products Differential Inner Gear Kits for 1994-2004 GRAND CHEROKEE - 707384X

Spicer Drivetrain Products Differential Inner Gear Kits for 1994-2004 GRAND CHEROKEE - 707384X

Spider Gear Kit, Open Differential, Dana 44, 30 Spline, Kit

Part Number: SDH-707384X

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Hinson Racing Billetproof Inner Hubs H198

Hinson Racing Billetproof Inner Hubs H198

Hinson Racing Billetproof Inner Hubs H198

Inner Hub, Billetproof, Billet Aluminum, Yamaha, Each

Part Number: HIN-H198

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

Spicer Drivetrain Products Differential Inner Gear Kits 708236

Spicer Drivetrain Products Differential Inner Gear Kits 708236

Spicer Drivetrain Products Differential Inner Gear Kits 708236

Differential Inner Gears Kit

Part Number: SDH-708236

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Longfield Inner Hub Gears for 1985-1995 4RUNNER, 1979-1995 PICKUP - 301507-1-KIT

Longfield Inner Hub Gears for 1985-1995 4RUNNER, 1979-1995 PICKUP - 301507-1-KIT

Longfield Inner Hub Gears for 1985-1995 4RUNNER, 1979-1995 PICKUP - 301507-1-KIT

Toyota Solid Front Axle with IFS Hubs

Part Number: LSA-301507-1-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

Pro-X Racing Parts Inner Clutch Hubs for 2016-2022 RMZ450 - 18.3421

Pro-X Racing Parts Inner Clutch Hubs for 2016-2022 RMZ450 - 18.3421

Pro-X Racing Parts Inner Clutch Hubs for 2016-2022 RMZ450 - 18.3421

Powersports Clutches, Inner Hub, Aluminum, Suzuki, Each

Part Number: PXR-18-3421

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Pro-X Racing Parts Inner Clutch Hubs for 2018-2021 CRF250R, 2019-2021 CRF250RX - 18.1348

Pro-X Racing Parts Inner Clutch Hubs for 2018-2021 CRF250R, 2019-2021 CRF250RX - 18.1348

Pro-X Racing Parts Inner Clutch Hubs for 2018-2021 CRF250R, 2019-2021 CRF250RX - 18.1348

Powersports Clutches, Inner Hub, Aluminum, for use on Honda®, Each

Part Number: PXR-18-1348

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Hinson Racing Billetproof Inner Hubs H165

Hinson Racing Billetproof Inner Hubs H165

Hinson Racing Billetproof Inner Hubs H165

Inner Hub, Billetproof, Billet Aluminum, for use on Honda®, Each

Part Number: HIN-H165

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

...Loading

Estimated Ship Date: May 5, 2026 if ordered today

S&S Cycle Inner Primary Bearing Races 560-0241

S&S Cycle Inner Primary Bearing Races 560-0241

S&S Cycle Inner Primary Bearing Races 560-0241

S&S 6-SPD BEARING KIT

Part Number: SSY-560-0241

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Spicer Drivetrain Products Differential Inner Gear Kits for 2003-2006 WRANGLER - 2017077

Spicer Drivetrain Products Differential Inner Gear Kits for 2003-2006 WRANGLER - 2017077

Spicer Drivetrain Products Differential Inner Gear Kits for 2003-2006 WRANGLER - 2017077

Differential Carrier Rebuild Kit, Dana 44, 30 Spline, Rear, Open Carrier, Jeep, Each

Part Number: SDH-2017077

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Pro-X Racing Parts Inner Clutch Hubs 18.1417

Pro-X Racing Parts Inner Clutch Hubs 18.1417

Pro-X Racing Parts Inner Clutch Hubs 18.1417

Powersports Clutches, Inner Hub, Aluminum, for use on Honda®, Each

Part Number: PXR-18-1417

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

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