Another potential source of "klunking" is loose inboard brake pads. I had an annoying klunk from the rear driver side area that I could not pin down. I rotated my tires last weekend and removed the caliper. When I removed the caliper the inboard pad fell out. It should not do that!!! I pried apart the retainer clips on the back of the pad and replaced it in the caliper. Klunk is now gone!
If you can't get a positively identified defect on one of your suspension components checking the inboard brake pad is worth the effort. If that is your problem you will have invested about one hour and zero $$$.
Last edited by crazy4trains; 10-23-2012 at 09:42 AM.