The TKX Pro-Fit fits vintage Charger, Coronet, GTX, Road Runner, Satellite, Belvedere, Super Bird and Super Bees like an original A833 manual transmission with the correct shift position and tunnel fit.
The new Pro-Fit 5-speed system features the new Tremec TKX transmission with 600 lb.-ft. of torque capacity with shifts up to 8,000 rpm.
American Powertrain is now introducing the next generation Pro-Fit 6-speed system for 1968-’82 C3 Corvettes. The system looks like the original 4-speed transmission with the correct shifter position in the factory console. Designed as a complete kit, it features an American Powertrain customized TREMEC MAGNUM 6-speed transmission.