Check out my Album to see the beginnings of my 61 unibody project. I have the body off the frame and have replaced both floor pans, cab supports, and sewed up a nasty hole someone cut (tore) for a top loader. I'm getting ready to clean and paint the underbody so I can sit it back down on the frame.

Anyone have any good recommendations for cleaning old undercoating? I'm not going to take it all off, but I want to recover it.