Model Compatibility: Fits vehicles equipped with 6T70, 6T75, or 6T80 automatic transmission systems as a direct replacement for the Transmission Control Module. Functionality Match: Restores functionality for transmission control, including shift timing, torque converter clutch , and diagnostic communication. Specification Alignment: Matches the electrical, mechanical, and software interface specifications of the factory-installed TCM for 6T70/6T75/6T80 transmissions. Installation Requirement: Designed for bolt-in replacement without modification to wiring harnesses, mounting brackets, or transmission housing on compatible models. Usage Scope: Intended solely as a functional replacement part for the Transmission Control Module in 6T70, 6T75, and 6T80 transmission applications.