Back in January on a cow elk in NM, we spent a couple of days sightseeing the ranch as we killed our cows early in the hunt. Two identical pickups, both F-350 long beds, 20" tires. My buddy was running a very popular, well known, and fairly aggressive AT tire. I'm running Defender MS2's.
Every steep draw we came out of I watched him in 4wd spin all four tires, throw rocks, slide, etc. getting up the hill. The same places I climbed out with barely a spin.......often in 2wd
Bill
Maybe next time you break trail.