ATSG (Automatic Transmission Service Group) is transmission industry’s leading authority on technical support and repair information. Since our inception in 1985 by Robert Cherrnay, we have kept his vision to grow, change, and revolutionize the industry year after year. With our over-the-phone diagnosis and repair guidance by expert techs, hundreds of manuals and tech guides, and newly expanded Tech Library, ATSG is ready to help you tackle any transmission job big or small!
Our priority is to focus on how we can better serve the automatic transmission shop and total car care shop owner, their employees, and technical professionals by providing unmatched technical support, continuous updated tech content, and membership enhancements. We turn problems into solutions to save our members time and money to help them get their customers in and out of their shop fully satisfied.