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 107

Rough Country - Suspension Leveling & Lift Kits for 2014-2016 SIERRA 1500, SILVERADO 1500 - 198.23RED

CV Drive Shaft Rear 3.5-6 Inch Lift Jeep Wrangler JK (12-18)

Part Number: ROU-S0051

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Rough Country - Suspension Leveling & Lift Kits for 2007-2013 SIERRA 1500, SILVERADO 1500 - 254.20RED

CV Drive Shaft Front Jeep Gladiator JT (20-22)/Wrangler JL (18-22)

Part Number: ROU-S0059

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Rough Country - Suspension Leveling & Lift Kits for 2007-2013 SIERRA 1500, SILVERADO 1500 - 246.23RED

CV Drive Shaft 4-Inch Lift Jeep Wrangler YJ 4WD (1994-1995)

Part Number: ROU-S0058

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

ReadyLift Suspension High Performance CV Axle Kits for 2022-2025 TUNDRA - 67-52420CV

Axle Shafts, High-Perforamnce CV Axles, with Boots, Toyota, Pair

Part Number: RLS-67-52420CV

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Rugged Ridge Heavy-Duty Clutch Link Kits for 1972-1983 CJ5, 1976-1986 CJ7, 1981-1985 SCRAMBLER - 16919.3

Clutch Link Kit, Heavy Duty, up to 3 in. Lift, Jeep, Kit

Part Number: RGG-1691930

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

RT Off-Road Slip Yoke Eliminators for 1987-2006 WRANGLER - RT24004

Slip Yoke Eliminator, Jeep, Kit

Part Number: RTO-RT24004

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

ACT Heavy-Duty Twin Disc Street Clutch Kits T1S-G05

Clutch, ACT Heavy-Duty, Twin Disc, Organic, 26-spline, Pressure Plate, Flywheel, Chevy, Pontiac, Kit

Part Number: ACL-T1S-G05

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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ATS Diesel Performance Stage 6 Automatic Transmission Rebuild Kits 313-906-4308

Rebuild Kit, Allison LCT-1000, Stage 6 Rebuild Kit

Part Number: APF-3139064308

Not Yet Reviewed

Estimated Ship Date: Today

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ATS Diesel Performance Stage 6 Automatic Transmission Rebuild Kits 313-906-4290

Rebuild Kit, Allison LCT-1000, Stage 6 Rebuild Kit

Part Number: APF-3139064290

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

ATS Diesel Performance Stage 7 Automatic Transmission Rebuild Kits 313-907-4290

Rebuild Kit, Allison LCT-1000, Stage 7 Rebuild Kit

Part Number: APF-3139074290

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

RT Off-Road Slip Yoke Eliminators for 1987-2007 WRANGLER - RT24005

Slip Yoke Eliminator, Jeep, Kit

Part Number: RTO-RT24005

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Advance Adapters NP231 Fixed Yoke Kits 50-7907

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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BDS Suspension Transfer Case Drop Kits for 1984-2001 CHEROKEE - BDS124006

Transfer Case Lowering, Steel, Black E-Coat, Jeep, Kit

Part Number: BDX-BDS124006

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Rough Country Slip Yoke Eliminator Kits for 1984-2001 CHEROKEE, 1987-2006 WRANGLER - 50-7907

SlipYoke Eliminator Kit, NP231, Jeep, Kit

Part Number: ROU-50-7907

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

BDS Suspension Transfer Case Drop Kits for 1976-1983 CJ5, 1976-1986 CJ7 - BDS124000

Transfer Case Lowering, Steel, Jeep, Kit

Part Number: BDX-BDS124000

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Rugged Ridge Transfer Case Slip Yoke Eliminator Kits for 1987-2006 WRANGLER - 18676.6

Slip Yoke Eliminator Kit, 32-Spline, Jeep, Kit

Part Number: RGG-1867660

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

ACT Xtreme Twin-Disc Clutch Kits T2S-F07

Clutch Kit, Xtreme Twin Disc, Performance, Dual Disc, 1.125 in. - 26-spline, 10.500 in. Organic Disc Diameter, Pressure Plate, Ford, Mercury, Kit

Part Number: ACL-T2S-F07

Not Yet Reviewed

Estimated Ship Date: Today

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Rugged Ridge Transfer Case Mega Slip Yoke Eliminator Kits for 1987-2006 WRANGLER - 18676.72

Slip Yoke Eliminator, Jeep, Wrangler, NP231, Each

Part Number: RGG-1867672

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Alloy USA Axle Lock Kits for 1984-1991 CHEROKEE, 1987-1995 WRANGLER - 450920

Axle Lock Kit, Front, Manual, Hardware, 3-6 In Lift, Jeep, Dana 30, 4WD, Kit

Part Number: ALY-450920

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

B&M Heavy-Duty Transfer Case Shift Cable Conversion Kits for 1984-2001 CHEROKEE, 1986-1992 COMANCHE, 1997-2006 WRANGLER - 81184

Transfer Case Shift Cable, Heavy-duty, Jeep, Kit

Part Number: BMM-81184

4.54 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

B&M Heavy-Duty Transfer Case Shift Cable Conversion Kits for 2003-2006 WRANGLER - 81186

Shifter Components, Heavy-Duty Transfer Case Shift Cable Conversion Kits, Shifter Cable, Jeep, L6 Power-Tech, Kit

Part Number: BMM-81186

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Artec Industries JK APEX Front Axle Ultimate Armor Kits for 2007-2017 WRANGLER, 2018 WRANGLER JK - JK3057

Artec Industries JK APEX Front Axle Ultimate Armor Kits for 2007-2017 WRANGLER, 2018 WRANGLER JK - JK3057

Axle Housing Brace, APEX, JK Front Axle Ultimate Armor, Steel, Natural, Raised Track Bar Height, Jeep, Kit

Part Number: RTE-JK3057

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Low Range Off-Road CV Boot Kits LROR-309391

CV Boot Kit, Neoprene, Front Inner, Chevrolet, Geo, Suzuki, Kit

Part Number: LRO-LROR-309391

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Low Range Off-Road CV Boot Kits for 1989-1991 SIDEKICK - LROR-309395

89-91 Sidekick Outer CV Boot Kit - With Crimp Pliers

Part Number: LRO-LROR-309395

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Low Range Off-Road CV Boot Kits LROR-309397

92-98 Sidekick 89-98 Tracker X-90 Outer and Inner CV Boot Kit - With Crimp Pliers

Part Number: LRO-LROR-309397

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Low Range Off-Road CV Boot Kits LROR-309396

92-98 Sidekick 89-98 Tracker X-90 Outer and Inner CV Boot Kit - Without Crimp Pliers

Part Number: LRO-LROR-309396

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

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