1970-1974 F-Body TREMEC TKX, Magnum, & A41 4L60E Transmission Kits

Modernize the performance of your 1970-1974 Chevrolet Camaro or Pontiac Firebird / Trans Am with our PerfectFit™ Transmission Kits. Specifically engineered for the early second-generation F-Body, we offer the industry’s premier overdrive solutions. Choose from the streamlined TKX 5-Speed, the high-torque Magnum 6-Speed, or our smooth-shifting A41 4L60E Electronic Automatic.
 

These kits are designed to provide a seamless fit into your classic 1970-1974 chassis, delivering significantly reduced cruising RPMs and a transformed driving experience while maintaining your factory interior aesthetics and shifter position. Each system arrives as a total solution, featuring all the high-quality components required for a professional, high-performance installation that brings modern efficiency to your early 70s muscle car.