Quick story; Around 1980 I had a Pontiac Sunbird 'Formula' fastback with limited-slip rear. I took three other guys into West Va. for a band gig, and we had to go over Afton Mt. on I-64 in a snowstorm, which was no problem. I had BF Goodrich Radial TAs on it then. It wasn't snowing when we got to the gig but it snowed while we played. The club was at the bottom of a steep hill, and when it came time to leave, there were various jeeps and 4WD trucks having problems getting up it. I couldn't believe it but the little Sunbird with 500 extra pounds in it zipped right up that steep driveway.
If I had your truck, I would look at the rear end and see if it is limited slip. If you have that and I know you have ABS brakes, you might consider loading a bunch of sandbags with road sand and carry them in the winter - maybe about 500 lbs. Then if you do get stuck anyway, you can use some of the sand under the wheels to help you get out.

 

My sand was my life line during my time up there and a good shovel . Ground clearance is a plus . Good sense and avoiding unnecessary trips , lay low and avoid salt , wash underneath often with soap . if you want a frame in a few years . Don't be cheap go to a car wash often .