I would definatly check the swaybar as well as the end-links. You may find everthing is tight and it may be that the bar is binding because of improper lub-re-cation. haha... But seriously, when my big (25mm) front bar gets dry it makes a bit of noise. I've never noticed my rear making noise, but it still seems to be pretty well greased. If all of that checks out ok, you may want to check your front end-links. If you're still running on stock end-links up front, and you do a fair amount of performance driving, the bushings may be shot, thus clunking.