I´ve got a set of Kumho knock off´s (look like the same tire, another manufacturer), they actually measured 29 1/2" at the crown (inflated, off the Jeep) when new. They are 30 X 9:50, actually a little thinner than 235X75 R15. The 235´s Goodyear A/T´s I had, measured 29" at the crown, and rubbed on the control arms a little more than the 30`s (I´ve since used washer spacers behind the steering stops). I´ve got them a couple of times to just touch, the plastic wheel well liner. I´ve got a 89 XJ with old springs.
I wouldn´t want to have the MT´s on there for long highway trips. Would probably heat them up and wear them out pretty quick. I do short trips on the interstate and a lot of tractor trail driving. The tires are a little noisey, but not too bad. The grip in muddy ruts and the bit of axle clearance comes in handy. I do leave a trail of mud, when I hit the streets again. And they do throw some stones.
