EFLine, I have a 14 that was neglected by the previous owner and my frame seems to have more rust than most on here. That being said I don't have as much as you. I wonder if there is a way to report this to GM even with your truck being out of warranty. The more people who complain the more likely something more than just recoating the frame with junk wax will happen. No matter what conditions it's been in, except maybe being submerged in the ocean, that is unacceptable for a 3 year old truck in my opinion. I used to work as a mechanic and 10+ year old trucks didn't have as much rust as your frame or mine, and I'm in Ohio with all the nasty road salt and grime they put down in the winter. It really shows the lack of quality gm put into protecting the frames on these things.