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

End of Summer Sale

Summer is winding down and it’s time to think about that fall project. Now till Aug 31st get $250 off any 5 or 6-speed kit!...

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TREMEC GM Magnum XL 6-speed is here!

Like the original Magnum, the GM Magnum XL is an aftermarket version of the celebrated TR-6060, which serves as factory equipment in numerous Detroit-based muscle...

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LS Classic Series Engines

LS Classic Series products are designed to give your LS engine the look of the classic Chevy and Ford engines of the ’50s, ’60s, and...

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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!

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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.

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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.