Cool shop to be in with trailer. Isn't it really comforting to know that some good rubber is riding under the monte. But don't get too relaxed as the tires get more years on them. I put off replacing my load range h tires after six years and that was too late to not have a blowout that sounded like a bomb. Now have a fender skirt and lower metal trim to fix. I was dumb. New tires will be replaced after five which should be okay with h load rating or maybe I will get blowout shy and change them at four years. Have tons of fun in your rig.
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.