I would hazard a guess that the radius rods are out of position.Is the bolt
holding the lower control arm on,tight?Are the nuts and bushings where the
radius rod goes through the frame tight? My westy had a bushing here
disengagrate, and the radius rod wore a 1 inch hole, to 2 inches in the
frame. Every time I stepped on the brake I got a thump from this rod
knocking on the frame. I would suspect thatimproper motion in these
components can dislodge the sway bar form proper position. Are the two
inner sway bar bushings loose? Swap the left inner bushing with the right
inner bushing to get new wear points on each bushing.Lastly, the hole in
the outter bushing, where the sway bar goes through, is a tight fit.Try
lubing the bushing/bar, and squeezeit back in place.Loosen up on the inner
bushings first,to do this.Roger