the 22.5's seem easy to find, it is the "9" number that is rarer. There are 10 22.5's that are more available, and some low profile metric equivalent that is very common. This all according to a tire guy I talked to. I a going to go scrounge a buddies tire pile, he runs lots of heavy equipment. I think he has a stack of the metric low profiles, and I know he has a new tire machine.
what ever fits, but 22.5's should be common enough [new], that's a standard truck size, before 24.5's became common
Bill
