American PowerTrain - 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 or T5 transmission into a muscle car, street rod or custom car. All kits come with our 2-year warranty and customer first 24-hour tech line. More Gears More Fun! Check out the video to learn about our Pro-Fit and Basic Fit Kits