Hello. I’m working on restoring a 1963 Starcraft Starchief. So far I have the boat all stripped out and the two side slider windows need some work. I’m thinking they need completely pulled out, frames and all, then re-seated, as they have spread away from the hull In the middle. It looks like each side is only held in with a couple of rivets. Before I jump in and make a mistake, any advice on working on these windows as far as getting them removed and put back in and sealed correctly? Any advice or insite from folks that have tackled this before would be greatly appreciated.