Well- I got through it alive!! I went through a few different items to get rid of the stuff and what worked best was the needle gun. Gave me Navy flashbacks (if its bolted down, strip it and paint it...) This stuff was really thick, and fairly soft, so the gun had to mash it to dust, but it worked. I was wary about the torch idea as I didnt pull the fuel lines out... thanks for the ideas though guys! Did I mention that the job came out terrific?? I think the Dart drives straighter than it did when I started!! Thanks to the tech pages!! I left the outer portion of rail intact- I think that is a good idea. Now to come up with the coin to get wheels and tires under there...