I have the weekend to still think it over. My Friend called me and said his tractors with the ironman now exceeded 60000 miles no problem and semi tractor trailers sometime gross 80,000 pounds if they are holding upper him and I only pay $500.00 for two tires out the door I am trying to say why not and I could mount them on the outside rear. but I did notice the two that are coming off are H rated and the Ironman are J rated and if they are in fact a subsidiary of cooper I will let you know what happens next week