My 2000 Dodge Conversion Van is starting to get rust and bubbled paint around the side windows that were installed by the conversion people "Mark III". I'd like to remove the windows and take care of the rust. Could someone advise me on where I might find some instructions or guidelines on how to do that. I was told there's a tool that fits behind the rubber seal, making it sound as though you could remove them from the outside. Any help would be appreciated.