A control arm bushing tool is a device specially designed for efficient removal or installation of control arm bushings. A variety of control arm bushing tools is available. These may work in different ways and/or be suitable for different types of control arm bushings. To remove an old bushing using the type illustrated here, the cylinder of the tool is placed on the outside of the control arm, and the threaded rod inserted and tightened. The process is reversed to install a bushing.