MODERN OVERDRIVE SYSTEMS FOR MUSCLE CARS, CLASSIC TRUCKS AND CUSTOMS 

 

 

Products

Transmission Kits
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Transmissions
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Automatic Transmissions
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Differentials
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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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Brake Kits
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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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News & Tech

American Powertrain™ Introduces 4-speed Toploader Transmission Hydraulic Clutch Kits Designed for First Gen Mustangs

Vehicle specific kits paired with MalWood Under Dash hydraulic pedals for 1964 – ‘66, 1967 – ‘68 and 1969 – ‘70 Mustangs Cookeville, TN (February 25,...

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2025 American Powertrain Show Schedule

We are back on the road for 2025! Here is our event schedule. Keep checking back for updates as we may add more to the...

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American Powertrain® Introduces5-Speed TREMEC® Pro-Fit TKX Transmission Kit for1982-2005 Chevy S-10/GMC S-15 Pickups

Ideal for V8 Swaps for any ’82-’05 Chevy S-10/S-15/Blazer/Jimmy Cookeville, TN (February 13, 2025) – American Powertrain®,the nation’s leading distributor of TREMEC® transmissions and the source of modern...

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Videos

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American Powertrain Transmission Install Tool And Seal Protector

Our trans seal and install tool is a big help for installing and storing your Tremec TKX, TKO and Magnum. We use these to protect the output shaft seal during shipping. The install tool has splines inside so you can use it to help line up your clutch splines during install. No more looking around for a yoke or having to use your driveshift to turn the trans for install. Plus this will keep your transmission full of fluid during service work.

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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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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.