Aw nuts! I was hoping you were going to talk about tread types.
I've got a 43 International H and am looking for a set of Firestone Ground Grips. Firestone only makes it one size for a much smaller tractor but I'd love to find an OE set to make my tractor origianal at least till I find a set of steel wheels for it.
Sorry, but I have to agree 'stones are the only way to go... we had to have a whole set of brand new titans replaced on an 8520 (thats 8 tires including the front and rear duals!)