The 6L80 transmission is a six-speed automatic transmission developed by General Motors. It often appears in GM automobiles such as the Chevrolet Silverado, GMC Sierra, and Cadillac CTS. The 6L80 transmission has superior torque capacity, making it suitable for large trucks and high-performance motor vehicles. The electronic control system provides accurate shifting, facilitating smoo... https://turboautoparts.com/blog/used-transmission/6l80-transmission-high-performance-auto-parts-turbo-auto-parts