Might have been a BS story, I ran into a RV hauler by Boise Idaho. His 2012 had 67,000 miles on it (I saw the ODO) and he claimed his 04 was 1,400,000 miles when he ritired it. That was a Auto truck and only had 2 trans rebuilds, 1 Diff, 1 Fuel pump, 2 sets of injectors. I would have liked to talk more but he had to get driving. Like I said this was his story, might have been a streach but hes had lots of miles on his new truck.