Thanks, Grigg!
I had kind of suspected that that was the case. Funny you should mention Ford. This truck happens to be a '59 F-350.
I'll keep this info in mind if I have to go tire shopping. If necessary, I'll just go back to 16", since I have a complete set of rims on my parts truck. I really don't care if they're tubeless or not, as long as they hold air!! grin


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!