I use Redi Strip in Allentown, PA...they can do any size up to and including a whole cab or frame. Takes off/out all rust, bondo, dirt and other foreign matter. I lke it better than blasting because you get a much smoother finish (plus it provides an oxide coating for rust protection), you're not knocking media out of your truck for the next 6 months and it's quick. Downside is initial investment it's pretty expensive...but there's a labor saving payback because of the pristine condition of the dipped metal.
