Automatic Transmissions

 An automatic transmission consists of a Torque Converter, Planetary Gear Set, Clutches and Bands, and a Valve body.  However, in many modern automatic transmissions, the valves are controlled by electro-mechanical servos which are controlled by the Engine Management System or a separate transmission controller.  The multitude of parts, along with the complex design of the valve body, originally made hydraulic automatic transmissions much more complicated (and expensive) to build.  In most cars (except US family, luxury, sport-utility vehicle, and minivan models) they have usually been extra-cost options for this reason. Mass manufacturing and decades of improvement have reduced this cost gap.  Rebuilding is almost always a cost saving option and our trained transmission builders have over 45 years of experience in repairing transmissions.