I've posted this before. 2014 crew cab 4x4 6.2 3.42. Bought the truck brand new, had the 70+ vib immediately, after dealer rf balanced, they replaced 2 good years. Vib better, but not 100% gone. Dealer installed Michelin 275/55/20 vib gone for about 5,000 miles. I did some research, every other truck I've had had LT tires, not P tires, it's my belief the manufactures run p tires for ride, and mileage. I decided to level/ lift my truck, and install 305/55/20 nitto Lt trail grapplers. Problem solved, have almost 30,000 miles on it now, owned it one year, dealer did a couple recalls while performing my free service, and gave me a vehicle to drive while doing so. This is one of the best trucks I've owned, out performs anything else out there, and in comfort. I would say that's a far cry from a P.O.S.