Enhance the electrical system of your classic Chevy with the Lectric Limited Backup Light Switch Extension Harness, specifically engineered for 1965-1966 Chevrolet Chevelle, El Camino, Monte Carlo, and Malibu models. This premium wire harness guarantees a reliable connection between your dash harness and the transmission-mounted backup light switch of your 4-speed manual transmission, significantly improving the functionality of your backup lighting system. Unlike generic options, our extension harness is meticulously crafted for these legendary vehicles, ensuring a perfect fit and exceptional performance.