I just traded my '14 2500, but had a terrible time trying to fix the vibration. Had tires road force balanced a three different shops, all put the weights in a different place. Had the dealer swap wheels & tires off a new truck on the lot, still no difference, tried different drive shafts, it was always there. I put a set of centramatics on it, and that helped more than anything, but you could still always feel it just slightly. I even thought it was wind flow, or aerodynamic buffeting characteristic of the truck, because on the highway, it would get worse, but be at the same cadence, if I rolled down one or both rear windows. Never did find a way to eliminate it entirely, even with different tires. I ordered a '17 in august, the same identical truck except the new one has air suspension on the rear. It sits level, compared to the '14, and more importantly to me, rides smooth as glass.