Try the lower control arm I had the exact same problem and that is what my dealership replaced.....

 

What part of the lower control arm is causing the problem? Ball joint, bushing? Did they re-align it after they replaced the control arm?

 

Yeah, my dealer said it was normal with all Mustangs. BS

If replaicng the front struts and springs will correct the problem I'm all for going with the Roush set up. Has anyone tried this yet with success?

 

Thanks man....i will keep up with it. They told me the same thing......as soon as a tsb is up...bring it in....

 

I'd also check the following:

- battery tight and without motion
- fuse box near battery zip-tied down (mine was loose and made a thumping noise over bumps)
- wiring harnesses tied back and away from motor and other points of friction
- airbox tight and not "clunking" over bumps
- hood prop rod tight when down (I put a piece of weather-strip under mine
- trunk latch cover tight (again - another piece of rubber stuffed under the cover edge)
- Spare tire tight
- Lug nut wrench secured down ( a small towel under the holster)

 

Also check and make sure you have properly secured the bodies in the trunk going over bumps can cause loud thuds. LOL

 

Not sure if it's the same, but my Saleen had a problem with hitting bumps unevenly. hit an expansion strip right on and no noise. Hit it with one wheel and it sounded like the front end was going to fall off. it turned out to be the Sway bar link to the wheels was not torqued properly. Not sure if that may be your problem, because my problem was a Saleen issue, but the syptoms sounds similar. The dealer re-torqued the end link and it's tight as a drum now.

 

Not my problem. I removed my anti-sway bar and still clunks.

 

I noticed the Fuse box when I installed my shift light....What the crap were they thinking????

 

the common problem for the clunking noise is that the strut top nuts back off on thier own, i fixed the clunk myself