Itasca Spirit 31' Tires

A thought on Ford chassis tire wear. If toe-in is set to Ford's specs, You WILL experience wear (and sometimes cupping) of the front tire's outside edge. Tire dealers will sometimes suggest you go to an alignment shop where they will sometimes try taking some of the toe in off. This will help the outer edge wear BUT will make the coach much more susceptible to being pushed around by crosswinds or oncoming trucks. Big truck chassis need that factory toe in setting to compensate for the action of the forward thrust of the coach pushing the tires straight against the pretty much non-adjustable caster setting. My experience over the decades has been fronts will wear out the outside edge at about 40K miles while the rears will last quite a bit longer. On our old RVs, I'd swap the fronts to the outer rear every 15K miles or so. Now that we have an coach with 22.5 wheels, the lug nut torque is now 450 ft/lbs rather than the old 19" 150 ft/lbs so I've resigned myself to just buying a couple of front tires sooner. I know you can get a torque multiplier to break the lugs free but torque wrenches capable of reading 450 are VERY expensive. The RV shops seem to all want quite a bit of money to rotate the tires. Gotta pay for those tools, I guess.