Ok I found the leak in the rear but have no Idea on how to fix it. In the picture is the drivers rear where the top of the side panel is screwed to the side. The holes from the screws is where the water is coming in. I gutted the back of the bronco this evening and had my son spray water under behind the rear tire like I was driving in the rain. First there was nothing then he sprayed it up higher and water came pouring in through the screw holes. This is under where the top bolts to the body there is a channel there. I wonder if there is a drain stopped up? If not how in the world will I seal this up.IMG_3158 by Daniel Crymes, on Flickr Thanks for all the replies. I will check out the bulge for sure sounds like that may be my problem. It used to leak the same way when I would bust a creek wide open and have water go over the top. It would leak bad just for a min then stop.