1964-1967 GM A-Body TREMEC TKX, Magnum, & A41 4L60E Transmission Kits

Enhance the performance and highway driveability of your early GM A-Body with our PerfectFit™ Transmission Kits. Tailored specifically for the 1964-1967 Chevrolet Chevelle, El Camino, and Malibu, the Pontiac GTO and LeMans, the Oldsmobile 442 and Cutlass, and the Buick GS and Skylark, our kits provide the ultimate overdrive solution. Choose between the streamlined TREMEC TKX 5-Speed, the high-torque Magnum 6-Speed, or the smooth-shifting A41 4L60E Electronic Automatic. These systems are precision-engineered to fit your classic chassis, offering modern cruising RPMs and crisp shifting. Each kit arrives as a comprehensive, total solution, including all the high-quality components necessary for a professional and seamless installation.