I am suprised that I couldn't find anything on this issue when I searched the forums. I have a 98 GMC Jimmy, and I get a lot of rear rattling noises when driving down the road. I tried driving with the rear window OPEN, which resulted in hardly any noise coming from the rear. Therefore, I am assuming it has something to do with the rear window. Anyone know how to fix this? The bolts holding the glass and the bolts holding the hinges are tight. What can I do? It's annoying and loud!