1968-1979 C3 Corvette TREMEC TKX, Magnum, & A41 4L60E Transmission Kits

Modernize the performance of your 1968-1979 C3 Corvette with our PerfectFit™ Transmission Kits. Specifically engineered for the early Shark-body chassis, we offer the industry’s premier overdrive solutions for your Stingray. 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 1968-1979 chassis, delivering significantly reduced cruising RPMs and a transformed driving experience while preserving your Corvette's factory console and interior aesthetics. Each system arrives as a total solution, featuring all the high-quality components required for a professional, high-performance installation.