70,000 miles on any tire??? That is way past my comfort zone. 50,000 is max for my Michelins on the F250 as well as my wife's Terrain. I am really careful with my wife's car--I don't want that call from her that the tires gave out. Yes, rotate and balance every 5000 miles--just like oil/filter changes. Just my opinion.
F-250 King Ranch Crew Cab 2012, Single Wheel, 6.7 L Diesel, Transfer Flow Internal 50 Gallon Fuel Tank, Upgraded Ford Software for 50 Gallon tank, 2006 3475Rl with Mor-ryde King Pin, 2nd AC, 2nd Battery, Pressure Pro TPMS, Wet Bolt Shackle Kit