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What is a control arm?

A control arm is a suspension component found in most vehicles. It connects the frame of the 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.

A 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. The bushing connects the control arm to the frame and helps to absorb vibrations and shocks from the road.

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.

Over time, the bushings and ball joints in the control arm can wear out and may need to be replaced. Signs of worn control arm bushings and ball joints include poor handling, uneven tire wear, and clunking or rattling noises. It’s important to have worn control arm components checked and replaced as necessary to ensure proper alignment and performance.