Thanks for the link. I did follow that advise and it worked for the leak from the molding above the rear door. However it doesn't address the issue of the rack studs lifting the metal that makes the cracks separate. I've used the heck out of my racks, but now I won't trust them for anything more than skiis. I wish I knew how the seam up there was joined/spot welded/or just superglued. Once I get my drivers seat back in I'm taking it to the Jeep body shop and see if they can weld it shut.
Then to address the rust on the floor pan
