Modern Overdrive Transmissions for Muscle Cars & Customs

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Shop by Category - Transmission Kits
American Powertrain Complete Transmission Kits. American Powertrain offer the most comprehensive transmission kits on the market. Everything you need to install a TREMEC TKO 5-speed, MAGNUM 6-speed...More Details »
Shop by Category - Transmissions
TREMEC TKO, MAGNUM and T5 transmissions. American Powertrain offers the most selection of TREMEC transmissions.
Shop by Category - Hydraulic Clutch Systems
Whether you are installing a traditional 4-Speed or a modern 5 or 6-Speed, getting the clutch working is always a big step. Now you can skip the clunky old mechanical linkage and install a...More Details »
Shop by Category - Bellhousings
American Powertrain offers several high quality and hard to find aluminum and steel bell housings for GM, FORD and MOPAR.
Shop by Category - Crossmembers
Half the weight of traditional cross member and 1000hp strong. X-Factor cross members are designed to fit with most muscle car platforms and the latest transmissions.
Shop by Category - Driveshafts
Built to order for your application
Shop by Category - Electric Power Steering
Modern Power Steering at the flick of a switch. Watch the video to learn more about our Electric Powersteering kits! More Details »
Shop by Category - Flywheels
American Powertrain offers the highest quality steel or aluminum high performance flywheels. Check out the video to learn more! More Details »
Shop by Category - Pedals
Shop by Category - Shifters
Shop by Category - Bell Adapters
Shop by Category - Crate Engines
One stop shop for crate engines
Shop by Category - Scratch and Dent
Discontinued or returned items for sale CHEAP!
Shop by Category - AP Apparel