1965-1967 Chevy II & Nova TREMEC TKX, Magnum, & A41 4L60E Transmission Kits

Enhance the performance and versatility of your 1965-1967 Chevrolet Chevy II or Nova with our PerfectFit™ Transmission Kits. These mid-60s X-Bodies are the perfect platform for high-performance builds, but they are often limited by original 3-speed or 4-speed gearboxes. We offer the industry’s premier overdrive solutions: the streamlined TKX 5-Speed, the high-torque Magnum 6-Speed, and our smooth-shifting A41 4L60E Electronic Automatic.

Specifically engineered for the 1965-1967 chassis, our kits provide a seamless fit into your classic interior, delivering significantly reduced cruising RPMs and a transformed driving experience. Whether you're running a high-revving small block or a modern LS swap, our systems arrive as a total solution. Each kit includes all the high-quality components necessary for a professional installation that preserves your factory console or bench seat look while providing world-class drivetrain reliability.