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Transmission & Drivetrain

Performance & Replacement Transmission & Drivetrain Parts

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.

Part Groups

Results 1 - 6 of 6

TransGo Vacuum Bypass Kits

Too much line pressure can cause damage to various parts under the hood of your vehicle. TransGo vacuum bypass kits will run vacuum to the transmission, even set to full manual. Not doing so will put excessive strain on your pump, seals, and engine thrust bearing. Bypass units are for use on engines with a vacuum modulator that are supercharged or turbocharged—to prevent increased boost from causing runaway line pressure.

4.0 out of 5 stars ( 7 )

$23.14

RevMax Billet Modified High-Pressure Pumps

RevMax's billet modified high-pressure pumps have been upgraded and modified to be able to produce over 325 psi with proper tuning. However, you would need a RevMax 68RFE valve body to be able to achieve more than 175 psi because of factory restrictions. All 68RFE pumps have been reworked with new valving and springs, and have passed multiple vacuum and pressure tests to ensure proper operation and reliability for many years. Select the RevMax modified high-pressure billet pump designed for your transmission. Note: Even though RevMax's pump can achieve extremely high pressure, it does not mean that they recommend more than 225 psi in the 68RFE transmissions.

Not Yet Reviewed

$1,599.00

Dorman 4WD Differential Actuators

When it comes time to replace your worn-out or failed 4WD differential actuator, look no further than Dorman. These replacement front axle actuators are available in the original vacuum or electric-style, just like OEM. Trust Dorman for the trouble-free engagement of your 4WD system.

4.47 out of 5 stars ( 51 )

$256.99

$350.99

Summit Racing™ Automatic Transmissions

Summit Racing™ Automatic Transmissions combine quality and economy to offer replacement transmissions in many styles and options. These units are remanufactured with all-new clutches, thrust washers, seals, bushings, and high-energy bands, along with other "failure prone" hard parts depending on unit. Other features include a rebuilt front pump, a valve body with shift for street and performance and high-quality seals and gaskets. You get all these impressive upgrades, along with reliable performance and extreme value. All transmissions are Dyno tested before they're shipped. Order the model recommended for your vehicle.

3.44 out of 5 stars ( 59 )

$2,090.99

$2,115.99

ATP Automatic Transmission Master Repair Kits

ATP automatic transmission master repair kits enable you to conveniently rebuild and restore performance. They include everything needed to give your transmission new service life—including clutch plates, gaskets, seals, O-rings, and (depending on your application) they may include an oil filter, bushings, or even a vacuum modulator. If you have transmission work to perform, let the pros at ATP furnish the master repair kit designed for your model.

4.3 out of 5 stars ( 44 )

$94.99

$323.99

Hughes Performance Hardened Input Shafts

Install one of these Hughes hardened input shafts in your transmission and you can be confident that you won't have any twisting or breakage. For high-horsepower and trans-brake applications, Hughes hardened input shafts made from 4340 billet steel will exceed the need.

5.0 out of 5 stars ( 5 )

$532.99

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