Been a while since I've checked out the forum, but thought I'd chime in on this thread.
Bought a 2013 Screw new in August 2013 and have enjoyed every mile! Currently have 192K on it, and have only had a couple of minor issues until earlier this week.
Replaced inner and outer pinion bearings in the rear end and replaced a rear wheel seal at 125K. Otherwise, it's been standard maintenance such as oil and filter (Mobil 1) every 10K, transmission flush and filter at 75k and 150K, new plugs at 100K and 191K (2 weeks ago), and a couple of sets of brake pads and a new set of rotors.
Earlier this week, I was leaving work when it dropped a valve with no warning. Was cruising on a 2 lane road at 45 mph under no load. Truck vibrated for maybe 30 seconds (felt like a flat front tire), then completely died. Immediately shifted to neutral and coasted to a stop. After getting it towed back to the shop, we pulled the valve covers and found a broken spring on #6. Removed the mangled spark plug, then scoped the bore to take a peek at the carnage.
Looks like I'll be adding an engine replacement to the list, and am also considering a transmission rebuild while it's in the shop.