When driving at highway speed (55+) I can feel a slight shimmy through the steering wheel. Also any sort of "bump" (protrusion in the road, etc.) that is driven over on the left front side causes a loud clang, but only a thud on the right side. I have had 2 alignments, new front brakes, rotated tires, replace loose right front ball joint, but the problem persists. Can you point me in the right direction?