Larry, I have the same tractor/tire setup and would appreciate hearing where and what you end up with. Everytime I look at chains I get overwelmed with the choices. I do have to say with what little amount of snow we had last year I had no trouble without chains using either the rear blower or rear blade. They were needed on my previous tractor. I now store tractor in walk out basement garage built in an addition thus will now have to blow my way around and up small hill along the house to the driveway in any larger snowfalls.