Universal Tire carries the re-pop 7.50 x 20 Firestone non directional tread military tires and I got mine there as well as the tubes and tube flaps. These are the right tires but not cheap like any other big truck tire so it took me awhile to save up to buy six. The 7.50's sit on the rims nicely and don't stick up too high and get in the way of the rings so I just knelt on the tire and used a short handled 5 pounder to knock them on.
I'd be happy to email you pictures of "Monty" I always like showing the truck off!
Last edited by sleeve; 02/17/2013 10:40 AM.