I recently had my 2011 Rav4 serviced. Since I live in an area with very rough & rocky roads, I always have my mechanic check my front end components for wear. He pointed out my lower control arm bushing was worn. He replaced both lower control arms (with ball joints). Now I have a significant clunk/rattle underneath the front end when I go over rough roads (mainly level, rocky roads). He checked all bolts associated with the suspension for looseness, inner/outer tie rods, shocks/mounts, etc.. He did tighten up the control arm bolts a couple of times and the problem seemed to get better but not gone. One question I had......does it make a difference whether you tighten up the control arm bolts when the vehicle is jacked up vs. on the ground? He always tightened them with one wheel off the ground. Any help is appreciated.