MacPherson Strut

It is the most common front suspension on small and mid-size cars because it is compact and cheap to make. The top of the strut is fixed to the body with a top mount and bearing; the bottom is bolted to the steering knuckle.

The strut carries the weight through the spring, damps movement with the shock absorber and turns with the wheel on the top bearing when you steer.

Worn top mounts or bearings can cause knocking or creaking when steering. After strut work the wheel alignment should be checked.