- Location
- Minneapolis, MN
If there is knocking when you hit pavement roughness, suspect the sway bar bushings first, and control arm bushings second. If the knocking is related directly to turning the steering wheel, and can be felt at the steering box, suspect the track bar or the track bar mounts. Make sure the frame side track bar mount is very tight, and the axle side bolt hole is not ovuled. Consider buying a new track bar if you do not know the age and condition of the current one.