What is a control arm bushing?
All vehicles but those that utilize full leaf-spring suspension have control arms, and all vehicles have some sort of bushing. These components are important for both ride quality and suspension longevity, but can wear out over time.Control ArmsThese components are connected to the wheel axle on one end, and the chassis on the other. They are responsible for controlling suspension movement through all axes.Bushings Shape and MaterialBushings are usually made of rubber, and are cylindrical in shape. They are usually two to four inches in diameter, two to five inches long and have a metal insert in the middle.Bushing LocationBushings are usually press-fit into the chassis end of the control arms and other suspension components.Bushing FunctionBushings allow the control arms to ride on a cushion of rubber in all directions of movement. This is crucial to isolating the minute vibrations experienced by suspension components from the chassis.FailureSince they form a direct interface between