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What does a control arm do?

A control arm is a suspension component that connects the frame of a vehicle to the steering knuckle, which holds the wheel and tire. The control arm allows the wheel and tire to move up and down as the vehicle goes over bumps and uneven road surfaces while maintaining the alignment of the wheel.

The control arm typically consists of two main parts: a ball joint and a bushing. The ball joint connects the control arm to the steering knuckle and allows the wheel to move in different directions, such as when turning. The bushing connects the control arm to the frame and helps to absorb vibrations and shocks from the road, reducing the transfer of these vibrations to the rest of the vehicle. This helps to improve the overall ride comfort and reduce noise and harshness inside the vehicle.

Control arms play a crucial role in the suspension system of a vehicle. They help to keep the wheels aligned and maintain proper tire contact with the road, which is essential for safety and stability. They also help to improve the ride comfort and handling of the vehicle by reducing the transmission of vibrations and shocks from the road to the rest of the vehicle.