Several years ago I also owned a 96 Southwind and had the driver's side pop out of the frame while driving. I found a glass shop nearby and they reset it. It came out again and I had it reset again. That glass shop told me the hole was cut too big and the gasket could barely stretch across the opening. I contacted Fleetwood and they had me bring it back to the factory and they put additional fiberglass around the opening, then reset it. It lasted until I got rid of the coach. A foreman at their plant told me that cutting the original hole in the cap too large was a common problem for them.