Ok truck has 6000 miles so motors broke in no issues what so ever with truck. Just went on a 1200 mile road trip Alaskas rough roads etc 3000 lbs slide in new truck is far better at doing this job than the old 1999 same hills curves etc it was a good test. New truck does it with much more confidence on grades and curves and stopping . Steering is more accurate no wandering. Bigger 18 tires ride smoother. 1 ton rides better. Better brakes and a seamless exhaust brake is a joy and the engine power is great. Just roll into it and your gone. And it make less noise it’s a winner. The downside to all of this is it cost money. The 99 required a substantial amount of upgrades to do the same job this one does it pretty much out box. I like that a lot. Keeps my warranty to but the fuel mileage is not as good as the old truck by far . Maybe 15-17 mpg empty or loaded .Old truck did 19 -20 loaded and 24 empty. Then there is the def expense. Fuel here now is $6.30 average. But over all a great work horse of a truck but it does love to eat it’s hay right. Drive on