to CenterISl..... do you have a TSB#? or a statement on what the dealership did to your roof?

I have no clue how to explain this problem to them.

again, is it a "flex chassis" issue.

the best example I can give is, when I'm backing up slowly on a incline, going diagonally, so one rear tire hits the incline first, I then can hear that awful "thud" loose roof sound!

again, is it a flex issue? help me....