I'm trying to purchase a 56 Chevy pickup, but the seller has a title with a VIN that is clearly not a GM or any other format VIN. There is a VIN stamped on the door jamb placard of the truck, but it doesn't match what's on the title. Has anyone seen this kind of thing before? What can I do to buy the truck but protect myself. My DMV (Pennsylvania) is saying that the title VIN has to match the VIN on the truck - what to do.