[ib3]

18.5 was a typo they are actually 38x15.5x20 sorry, I am very happy with the Nitto Mud Gappler. Make sure you have a good alignment done as with any aggresive tread tire. yes 50,000 miles on my last set with a 2003 h2 and they were far from worn out. I wasvery happy with them. I wish they were a little more quiet but otherwise very happy!