The rubber in my window channels is getting hard after 27years of service and is wrinkling ..... so now my windows don't fully seat in the top of the door. Anyone have any tips or tricks for revitalizing the rubber? Its all intact and there. Just hard and SET in its way, lol.
When I was painting my truck,I had all that removed ,so cleaned very well & wiped down with a 3-M rubber renewer/cleaner product. If you remove the pieces you can get the product to cover completely,you can even soak them!