From '88 until 2000, I had a '74 K10. It was my "signature" truck, you know, the one everyone identifies you with when you're growing up (unless you go through a lot of vehicles).
It was a burnt orange color, and the front driveshaft lay rusting in the bed, but it never got stuck. I guess it helped that the trails were usually dry... Oh, wait... I did get it stuck in a sand dune once.
Over the years, the old '74 took my dog, my rifle, and me through countless miles of desert trails and dry creekbeds, and was just the thing for bombing down the endless network of dirt roads in that part of New Mexico.
Now, my primary vehicle is a Trailblazer, but I also have Earl, a grey '86 Silverado, as I'm the kind of guy who just isn't comfortable without a pickup truck. Unfortunately, Earl is a two-wheel drive truck, but that didn't slow me down in the '74... but I'm living in a wetter climate now.
I'd love to set Earl up as a back-road exploration truck, maybe even building or buying a pop-top camper... or even just a bed-tent. I would like to upgrade the rear end with a selectable locker, like an ARB, and while I've just bought a set of road tires, I'm always on the lookout for a good A/T tire deal.