Gearstar Performance Transmissions remanufactures high-performance automatic transmissions built by the industry's top expert technicians. using the best performance parts available. In order to maintain consistency and quality during the building process, each transmission is handled by a single builder from start to finish. And is put through rigorous qualification and inspection process. Each transmission and converter are dyno-tested the equivalent of 100 mph on the street where we check hydraulic pressures, temperatures, shift quality, converter stall and lock-up. We make sure all shift points are at the correct RPM. When you receive your transmission and converter package, you can be sure it is functioning perfectly . Whether it is a Turbo 350 going behind a mild small block or a 4L85E built for a C5R blown LSX, the same expert technicians will be working on either package. At Gearstar, we approach each project as if it was going into our own car or truck.
