1968-1972 GM A-Body TREMEC TKX, Magnum, & A41 4L60E Transmission Kits

Modernize the driveability of your 1968-1972 GM A-Body with our PerfectFit™ Transmission Kits. Precision-engineered for the Chevrolet Chevelle, El Camino, and Malibu, the Pontiac GTO and LeMans, the Oldsmobile 442 and Cutlass, and the Buick GS and Skylark, we offer the industry’s most reliable overdrive solutions. Choose from the streamlined TREMEC TKX 5-Speed for high-RPM precision, the robust Magnum 6-Speed for ultimate torque capacity, or our A41 4L60E Electronic Automatic for smooth cruising. These kits are designed to fit your classic chassis while delivering reduced engine wear and a transformed experience on the open road. Each system arrives as a total solution, featuring all high-quality components required for a professional installation.