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.

Individual Parts

Part Groups

Results 1 - 25 of 30

Renthal Ultralight Rear Sprockets 141U-520-39GPBK

Renthal 22-23 Vertigo JB-R 280/DL-R225-300/Nitro 250-300 Rear Sprocket Grooved - Blk 520-39P Teeth

Part Number: REN-S0058

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

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Estimated Ship Date: Aug 8, 2025 if ordered today

Renthal Ultralight Rear Sprockets 141U-520-40GPBK

Renthal 22-23 Vertigo JB-R 280/DL-R225-300/Nitro 250-300 Rear Sprocket Grooved - Blk 520-40P Teeth

Part Number: REN-S0059

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

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Estimated Ship Date: Aug 8, 2025 if ordered today

Shiftworks Slap Shift Shifter Conversions for 1968-1969 IMPALA - SC225-R

Factory Shifter Conversion, 4L80-E, 4L85-E, Slap Shift, Chevy, Kit

Part Number: SIW-SC225-R

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2004-2014 IMPREZA, 2015-2021 WRX STI - T1R-S05

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 24-spline, 8.800 in. Disc, SFI Certified 1.2, Subaru, 2.5L, Kit

Part Number: ACL-T1R-S05

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2004-2014 IMPREZA, 2015-2021 WRX STI - T1R-S07

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 24-spline, 8.800 in. Disc, SFI Certified 1.2, Subaru, 2.5L, Kit

Part Number: ACL-T1R-S07

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2003-2006 LANCER - T1R-M01

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T1R-M01

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2003-2006 LANCER - T2R-M01

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T2R-M01

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits T2RS-N03

Clutch Kits, Mod-Twin 225, Extreme Sprung Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Nissan, Kit

Part Number: ACL-T2RS-N03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits T2RS-S01

Clutch Kits, Mod-Twin 225, Extreme Sprung Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Subaru, Kit

Part Number: ACL-T2RS-S01

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Maxx Extreme Twin-Disc Race Clutch Kits T3R-N03

Clutch Kits, Mod-Twin 225, Max Extreme Rigid Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Nissan, Kit

Part Number: ACL-T3R-N03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Maxx Extreme Twin-Disc Race Clutch Kits T3RS-N03

Clutch Kits, Mod-Twin 225, Max Extreme Sprung Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Nissan, Kit

Part Number: ACL-T3RS-N03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2003-2006 LANCER - T1R-M03

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T1R-M03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2008-2015 LANCER - T1R-M07

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T1R-M07

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Race Clutch Kits T1R-N03

Clutch Kits, Mod-Twin 225, Heavy Duty Rigid Race, 1.000 in. -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Nissan, Kit

Part Number: ACL-T1R-N03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Race Clutch Kits T1R-S01

Clutch Kits, Mod-Twin 225, Heavy Duty Rigid Race, 1.000 in. -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI Certified 1.2, Subaru, Kit

Part Number: ACL-T1R-S01

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2003-2006 LANCER - T2R-M03

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T2R-M03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2008-2015 LANCER - T2R-M07

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T2R-M07

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits T2R-N03

Clutch Kits, Mod-Twin 225, Extreme Rigid Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Nissan, Kit

Part Number: ACL-T2R-N03

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits T2R-S01

Clutch Kits, Mod-Twin 225, Extreme Rigid Race, 1.000 in -24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI 1.2 Certified, Subaru, Kit

Part Number: ACL-T2R-S01

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Race Clutch Kits T1RS-S01

Clutch Kits, Mod-Twin 225, Heavy Duty Sprung Race, 1.000 in.-24 Spline, Ceramic 225mm Disc, Forged Steel Flywheel, SFI Certified 1.2, Subaru, Kit

Part Number: ACL-T1RS-S01

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2004-2014 IMPREZA, 2015-2021 WRX STI - T2R-S05

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 24-spline, 8.800 in. Disc, SFI Certified 1.2, Subaru, 2.5L, Kit

Part Number: ACL-T2R-S05

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Heavy-Duty Twin-Disc Street Clutch Kits for 2008-2015 LANCER - T1R-M05

Clutch Kits, Mod-Twin 225 Heavy-Duty Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T1R-M05

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

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2008-2015 LANCER - T2R-M05

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 23-spline, 8.800 in. Disc, SFI Certified 1.2, Mitsubishi, 2.0L, Kit

Part Number: ACL-T2R-M05

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

ACT Mod-Twin 225 Extreme Twin-Disc Race Clutch Kits for 2004-2014 IMPREZA, 2015-2021 WRX STI - T2R-S07

Clutch Kits, Mod-Twin 225 Xtreme Twin-Disc, Performance, Ceramic, 1.000 in. - 24-spline, 8.800 in. Disc, SFI Certified 1.2, Subaru, 2.5L, Kit

Part Number: ACL-T2R-S07

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

ACT Mod-Twin 225 Maxx Extreme Twin-Disc Race Clutch Kits for 2003-2006 LANCER - T3R-M01

Clutch Kit, Mod-Twin Maxx Xtreme, 8.8 in. Ceramic Disc, Sprung Hub, Mitsubishi, Kit

Part Number: ACL-T3R-M01

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

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