You can get felt at a fabric (sewing) store. Be sure to put a ground strap on or your fuel gauge may not work. New gaskets for the sending unit / pick up are still available from your local Chrysler dealer if you need one. The factory ground strap just clipped onto the fuel outlet from the tank, and also onto the fuel line on the body (over the rubber flex hose joining the two) A piece of wire and two small hose clamps are a good substitute.