The main function of a Control Arm is to maintain the proper alignment of the wheels and provide stability while driving. It does this by connecting the suspension to the chassis, allowing the wheels to move up and down as the vehicle encounters bumps and other road imperfections.

The Ball Joint in the Control Arm also allows the wheels to turn, which is crucial for steering the vehicle. By maintaining the proper alignment of the wheels, the Control Arm helps to ensure a smooth and stable ride, even on rough roads.

Another important function of the Control Arm is to provide additional support and stability to the suspension. It helps to distribute the weight of the vehicle evenly, which is essential for maintaining proper handling and control. The bushings in the Control Arm also help to absorb shocks and vibrations, reducing the amount of stress on the suspension and the rest of the vehicle.