i have had the nitto terra graplers on my 2010 tundra, and i never once got stuck in the snow in colorado, the sand dunes in el paso texas, the mud in the great smokies, i put 20k miles on them when i traded my truck and the tires looked liked they had lost not 10%, you could still see the grooves on the outsides edges of the tire meetnig the tread and just tell they were going to last a while.
p.s. i also towed a 21ft enclosed car hauler trailer for 1700 miles. (total weight 20,000lbs including the truck) i would buy those tires again in a heart beat. but now i am looking for a little more meat, im sold on the reviews of the toyo m/t's. i love how aggressive they look but at the same time reviews for highway noise is the lowest in comparison to others