Thanks Dan. I had it off and was doing that, but it was in there so tight I was worried about breaking it. Thought it might be glued in or something.
At this point I have the drivers seat in pieces. Took a chance and put the cover through the washing machine. Came out great! Of course I haven't tried to put it back on yet. Cleaned the foam as best I could and am waiting for that to dry. Decided to do seats one at a time because I have a habit of forgetting how things go back together, and I have so many parts of the rest of the truck sitting in the shop I have no room. Now I have to find somewhere to store the seats until I finish welding in the new floors. Told the wife I might store em in the spare bedroom. NO!