I have to agree with gary ^^^. it won't make much difference even if you do locate a tire in that range ?, if the axle/axles can't handle the load ?, your begging for a wreck. the axles must be able to carry the load, as well as the tires. simply putting a higher load range tire on the rim, won't make it all good !. the axle has to be able to carry the load from the start. so, before you go looking for higher load range tires/rims , you need to make sure your axles can handle the load !.