GB I didn't do this on my Dodge yet, but I did try this on my Ford Louisville-and for the same reason-road time and shakedown. My windshield gasket was badly cracked in spots. I masked off the edges, and used some of the urethane seam sealer (the black stuff that comes in a tube) that Eastwook sells. I filled in the cracks, made things look a lot better, and made the gasket watertight again. The important part is to mask where you don't want it to go, and wear disposable glove as this stuff sticks really good once it starts to set. It dries to a semi gloss type finish-may be one of those temporary to permanent repairs. Mike