On each door there is a rubber piece that attatches to the door and contacts the window on the outside as it goes up and down I guess to keep water from going into the door. What is that called and where can I get a pair? It looks like it is attached with little rubber clips. How can it be changed, ie does the window have to come out of the door? Thanks a lot, folks for any info you might have. My other rubber gaskets are in really good shape.