Sunroof ramp piece broken

My sunroof has a little ramp on both sides that allows it to move up and down to accommodate the forward and backward/up and down movement of the sunroof as it transitions from the first position (partially-open) to the second (full-open). There is a screw on each side that hold the bracket down that that secure the little spring device that allow this to happen. One od these pieces is broken so I can only get it to close if I physically hold it down to allow the track to slide over the broken area. Do I need to go in and pay a couple of hundred to get it fixed at a dealer, or will a little JB weld in the screw area work? In other words, can I permanently fix that screw in place, or is there a reason that screw has to be able to be removed?
Thanks!