"open country" are Toyos. did you get thoes or the Nitto's?I just bought the Nitto Open Country A/T about 5000 miles ago an the rear tires are already 1/2 way wore out. Im not easy on the pedal, I have a lot of kills on the tires. They work great towing. On and off road performance are pretty good. Mud and sand they do well also when you let some air out. All in all I dont like how fast they are wearing.