2004R Servos

A servo is designed to engage a certain gear range to a drum using a specific band brake. It also has the ability to release and produce the next gear range and sometimes the servo and drum can work together to fill a gear range as well. This is controlled by the valve body and is constantly running while driving. The 2004R servo comes in a special Super Servo package with everything you need to install the servo system, including instructions covering point by point installation tips.