The Delphi Control Arm Kit - 135668 is a comprehensive set of products designed for use on a car's control arm. It includes three different components, each serving a specific purpose in maintaining the control arm's functionality. The first component is a control arm itself, which is a vital part of a car's suspension system that connects the wheel hub to the chassis. The second component is a ball joint, which is a pivot point that allows the control arm to move and pivot as needed. The third component is a bushing, which is a rubber or polyurethane cushion that helps to absorb shock and reduce noise and vibration. This kit is designed to provide all the necessary parts for a control arm replacement or repair, ensuring optimal performance and safety for the vehicle.