WOW...
Bob is my 2015 Chevrolet 3500 HD dually. He came with a 235/80R17 and I have put on two sets of tires since. This time, I went to the Toyo Trail RT in a 255/80R17 on the 6.5" to keep him as stock as possible, with no rubbing or leveling kit, so I could continue to pull my 5th wheel. The tires added about 1.5" but the ride feel was night and day! The Manx gave me a near stock posture with plenty of room between the carrier and new rims to keep all the traction the RTs are known to give. My only regret was I waited 10 years before making the change....