Test drive before you buy. Chev is my choice of vehicles to repair with 14 older Chev fleet trucks on the road a few years ago. My new job forced me to drive new vehicles in 07' and my current 2016, 2500 Chev, 4 door extended cab shorter box drives like a noodle. Something about the new electric steering system. The Trailer brake controller is hyper sensitive, which may be good but it recognized a wee bit of rust in the trailer plug after I hit a bump. It only happens at night when you're 2 hrs from base hauling an 8000lb bobcat. The truck codes and leaves you without trailer brakes. I carry spares of all the lights, battery, pigtails and trailer parts, but if you buy a 2016 Chev, carry spare trailer plugs and all the tools. Not sure about the 17's but I'd seriously spend some time white line driving to see if the front end makes you happy. The 6.0 gas pot is light for pulling. Unusually high revving and I'm light on the throttle. If you're pulling weight upgrade it'll snap up to 5800rpm on a shift,,,,almost scary if I didn't like it so much. Can't see one lasting very long with the high rev bands but hey, corvettes ref high too and they last forever.
The 2016 plain jane rubber floor mats Dually, Duramax, crew cab, had bad pulleys and started smoking the belt on the second day. Something about the pulleys on the 16' Duramax that makes them wobble. Same issue with the steering, drove like a noodle, but not as obvious as the single wheel 2500. I drove a dozen duallys before the 16' so discussing with the dealership that I might not be familiar with dually steering was hilarious.
The 2014 Denali Dually and 2011 Dually Ltz Duramaxeses, were both flawless trucks....perfect. Never saw a dealership except when I backed down a hill, hooked that huge tail pipe and wrapped it under the axle. They want $6000.00 for an exhaust system so don't do that. The Duramax is insane, absolutely insane, but I haven't owned a cummins so what do I know.
I really hate to knock down a Chev or GM and they are working through the problems as clearly indicated online. Test drive before you buy and congratulations on a new purchase if you so choose to take that mission. This note will self destruct in 3, 2