Ok i know the roofrail channel has a roofrail weatherstrip channel to body seal,my question is what did they use under the driprails? I know they couldn't have had it together metal to metal with no seal ( seems like that would be one big leak, which i am trying to stop ) i have looked and can't seem to find anything for this. can 3M adhesive be used here to prevent any water from getting in? Thanks for any suggestions