In your vehicle, one of the most important mechanical systems is the one that allows you to steer the car. The steering mechanism is comprised of a number of components. One key part is the idler arm, which is a pivoting support that works with the steering linkage itself.
The key parts of this Idler Arms are a rod, a bracket, and a ball joint. The arm is generally attached to the vehicle frame via the bracket, then to the center link via the ball joint.