MODERN OVERDRIVE SYSTEMS FOR MUSCLE CARS, TRUCKS AND CUSTOMS

Products

Transmission Kits
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Transmissions
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Hydraulic Clutch Kits
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Bell housings and adapters
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Shifters
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Flywheels
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Clutches
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Cross members
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Shift handles and knobs
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Services
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Pedals
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Gear and apparel
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Electric Power Steering
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Fluids
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Accessories
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Crate Engines
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Rear Axle Assemblies
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Differentials
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News & Tech

Fall Into Our Clutches! Limited time sale

Shift Spooky Season Into Overdrive Now till Halloween! Car shows are winding down this month. Get a jump on your winter time project this fall....

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Aug 2022 Special Deal!

Now till Aug 31 get a free White Lightning billet short throw shifter upgrade. With purchase of any Pro-Fit 5 or 6-speed kit. White Lightning...

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HOT ROD POWER TOUR 2022

Once again for Hot Rod Power Tour we will be teaming up with TREMEC Transmissions and giving away a complete 5-Speed or 6-Speed kit for...

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Videos

Play Video
Fox Body Mustang Hydraulic Clutch Conversion from American Powertrain

Stacey David from Gearz goes over our new under dash Hydramax Hydraulic Clutch conversion for Fox Body Mustangs. Cut the Cable for good!

Play Video
American Powertrain 3rd Gen Camaro Tremec TKX 5-speed kit

This quick video goes over the features of our new Tremec TKX 5-speed kit for 3rd Gen Camaro and Firebird. Fits 1982-92 GM F-body. 6-speed kit is also available right now.

Play Video
AmericanPowertrain 1st Gen Mustang TREMEC TKX 5 Speed Kit Install

Tommy from Detroit Muscle on PowerNation TV goes over the basics of installing a new Tremec Transmissions TKX in a classic first gen mustang using American Powertrain's conversion kit including our crossmember, Hydramax® hydraulic clutch, and White Lightning Shifter.