Good morning everybody! I have a little bit of rust starting where the wheel will attaches to the side wall of the bed. I'm going to send it down a bit and then prime it and then put some seam sealer in there. That is the plan anyway. LOL. Any recommendations for seam sealer? I know there's lots of choices these days. Urethane. Silicone. Etc... Thanks! I am also spraying the undercarriage of the truck with some Rust-Oleum rust reformer. It's not real bad under there but I would like to slow it down. I have just been standing off any flaky rust and then hitting it with the rust reformer. Much of it is just mild surface rust which I am able to just spray.