[bkozlow]

In 1969, I replaced the Goodyear racing tires on CSX-2286 with 60 Series tubeless tires, the hot tire at the time for the street. My tires had tubes in them and I replaced the tubes with new ones, so back then it was not a problem as tubeless tires were just coming to the market. Otherwise, I would have run into the problem that now faces you. I would first check with Coker tire and see if they have any suggestions as they make a lot of the old tires. Also, check out on Amazon PREMIUM SERVICE GR13/14/15 Automotive Tire Inner Tube TR13 Valve Stem Automotive. I don't know what size tires you have put on, but the site gives you a lot of tubes for various 15 inch size tires. See, if you can find out who makes these tubes and talk to them as to the proper size for your tires. As I remember, we had to go a little over sized on the tube because 60 aspect ratio was also new and lower than conventional size tires of the time. You do not want to go UNDERSIZED on the tube.

Bill K