I convinced a friend to put them on his S-10 Blazer. They were 30x9. 5R15. These tires are great. The road noise is nothing when compared to General Grabber A/T, BFG A/T, and such. The road traction is great. The off road traction is so-so, but I'm in Ohio where you need something to throw the red clay to go any where. If I had to rank them as a A/T style tire:
Dry Road = 9
Wet Road = 9
Mud = 6
Sand = 8
Side Grip = 8
Also he has 15-20,000 miles on them and they are still half good. Not bad for a 4x4 tire.