in answer to SamD
Still love my Duramax, though it's a lot dirtier than the above right now! :-)
Don't know if you had a chance to see mine, but notice we both went with matching bed, and step rails.. only diff is those on our "max" are black.. Avoided the 4WD as it's just not needed, and as Hamp (?) pointed out they have issues.. and the big D engine puts enough weight on the front as is.. Actually ours has outstanding handling, changed over to big Michelins, and while it has a bit of understeer not as bad as one would think..
there are a couple of places I can't get up, including the hill at the gun range. Notice the step extends to the bed. That is VERY handy, I've found for manipulating stuff in the bed. I lined it with linex.
Actually the truck is part of my SHTF prep work. I have a 250 gallon tank full of either diesel or bio diesel (soy oil) along with a diesel generator. Between the tank and the truck (34 gallons) I have a max of near 300 gallons, assuming they're all full. That's enough for several months in case "supplies get low." Just a little leeway is nice. Beer & charmin for barter. :-)