My clunking got worse. I looked around and it was the bolt that holds on the lower control arm. I tightened it and that worked great for a few weeks. My mustang must have come from the factory a little loose because after I tightened it, it handeled better and was much more "quiet".... no rattles like when it was new.
It started again so I tightened it down again with some blue locktite. Worked great for half a day and now I sit here at work, with a car that looks nice but sounds like total CRAP. Ford knew/knows about their sloppy, crappy, spoty, shotty workmanship. for that, I think i'll buy me another nissan. If I remember right, both of my nissan trucks went 1/4 million miles (each) and I don't remember ever having ANY problems other than a low tire or maybe a Battery every 5-7 years. I just hope I don't need to pass anyone on the highway.