I've had this truck for almost 4 years, and I have nothing but good to say. I have a 37' 5th wheel, which when loaded is right at 16300 lbs and it pulls it great. Now I'm not going to tell you that I don't know the 5th wheel is back there, but this truck is a joy to drive while pulling. She'll be paid for in a couple of months, and I plan to keep her for a long time.
Duramax engine and Alison transmission combo. This is a great team!
I wish GMC would come out with some nice wheels for the 3500. I ended up getting Alcoa wheels.