The first thing I did was to take the roof rack off !!! If I want to haul something I'll put it inside. I went to the local auto glass shop and asked them if they would seal the holes for me and they said "NO" but they would give me some sealer. Ok there are 12 small holes. How much sealer do you need for that ? They gave me a TUBE OF SEALER, 10.5 oz of sealer. My truck is metalic spiral gray and the sealer is black. I just filled the holes and all you can see is the nuts that stand proud of the roof. The sealer they gave me is (DOW U-418 Quick Cure Primerless to Auto Glass Urethane Adhesive). I have about 10oz left. LOL