There are two types of window seals — one for the small vent windows, which are fixed, and the other for the main windows that move up and down. Replacing vent window seals is simple. You have to remove the vent glass, put the seal around it and then put it back. But it gets a bit more complicated when it comes to the main window seals. Main window seals come in three parts, and you have to replace them one by one. First, install the beltline seal with adhesive. After that, install guideline-stripping. To install the guideline weather stripping, you have to remove the door panel.