I recently picked up this 2500 HD. It had an engine problem, some body rust, needed tires and the rusted out wheels replaced, etc. but I figured that, with a little work, this will make a great wood truck!
Well, THAT didn't go as planned! Still some work to go (replace rockers) but I seem to have taken a different direction.
The original steel wheels have a false chrome trim plate bonded to the outside to dress them up. Rust builds up behind the plate and pushes it off the wheel.