Loosening Trim & Hold Down Latch

Hi All,

Now that I've solved my window leaks (thanks Frenchy!) I've discovered another problem.

The hold down latch on the front shell (forward of the door) had loosened. While tightening it up, I noticed that the aluminum trim which wraps the underside of the upper shell has loosened. All of the screws (both trim & latch) are tight, but the trim will still move up and down by 1/4" or so. You can see the range of movement on the shell paint. (see pics)

Anyone know what should be keeping the trim from moving? What's under there?

Thanks,

Steve