I have come across several Dirt Track tires and I believe they are for Sprint Cars. They are American Racer tires, size 34/18/15. Still have new tire nubs. (never mounted or used) I have 10 of them. Sell new for $169.00 each. Make an offer. I am located in Indianapolis. Can send pics for tread pattern. Will deliver if gas money included. My e-mail is dan.drury@ymail.com