Well, let me say this about the BFGs. On my 1/2 Silverado I got 60k out of them and they still had tread left (I traded the truck in at that point). I loved them and have had them even before that. Now, fast forward a couple years to my 3/4 Duramax. I went with the exact same tires in the exact same size. Those tires managed to get 22k before Discount Tire bought them back under warranty (50k warranty). I replaced them with the Goodyear Duratracs. I was really disappointed with the BFGs as I really loved those things before. Obviously the dmax has a lot more power and is heavier, but I still wasn't expecting such a sharp decline in tire life. I would rather be buying tractor implements or cows or something than investing in new tires every 20k miles.