Some vehicles with strut suspensions attach the strut to the steering knuckle assembly, which means the strut is part of the steering . A strut bearing or bearing plate on the strut assembly allows the strut to swivel when the vehicle turns. Age, collisions, or corrosion can damage the strut bearing and keep it from turning smoothly. This can cause clunking or knocking when going over bumps or through turns. The steering wheel may also be stiff or pull back to the center if you let go of the wheel. If your strut bearing has failed, it can cause alignment problems and may wear your tires unevenly. If you need to replace your strut bearing, or even a complete strut assembly, visit O'Reilly Auto Parts. We carry ride control parts for most cars, trucks, and SUVs.