Thanks for the replies, the P/O had 2 farms and he wore down the tires on asphalt, going between them. I was amazed at the shipping costs, when I checked online, I think I have found a tire dealer locally that will get them and come to my place and install them, I guess if I was looking for tractor tires for it I will need to get R1 rims is this correct, by the way I'm in Northern Ky. What exactly is the advantage of R4 tires, just the width?