Based in Gillette, Wyoming, Automatic Transmission Systems & Drivetrain specializes in transmission and drivetrain repair, rebuilds, diagnostics, and maintenance for all vehicle types. With ASE-certified technicians and decades of experience, they handle everything from transfer case and differential service to complex transmission issues-serving both domestic and import vehicles. Known for honest service, precision workmanship, and competitive pricing, the team is committed to getting drivers back on the road safely and efficiently. Military discounts are available, and every repair is backed by a dedication to quality and customer satisfaction that sets them apart in the region.