You are down to the same tires I was before purchasing BFGoodrich KO2's.The coopers don't have enough siping for Michigan winters, the DuraTracs are sweet, if you are doing a large tire. Like 285 65's or better. Otherwise that really bitchin' shoulder claw and outer lug combo that makes them so rugged gets kinda small in the 275 stuff. My buddy has the 2500 sierra and got the DuraTracs and he wishes he got the KO2's after seeing mine and riding in them. Both nice tires really, but the new KO2 has the DuraTracs trumped IMO.