37" BFG KM2's in the rocks?
But I personally think the KM's and probably any load D range tire has too soft of a side wall for the heavy pig of a JKU.
I do have beadlocks and am able to air down lower then regular rims.
I have about 30K miles on my 37's. The vast majority of the Wheeling I do is rocks and when aired down to 10-12 they perform awesome. They due chunk a bit though. I have about half tread left and will most likely purchase these again.
It's been a great tire. I run the KM2's in 37's and so far so good. Comfortable tire on the road, light weight compared to others and I like the design. I do moderate rock crawling trails and no side wall damage yet.
I've run em for awhile now. Knock on wood I haven't had any issues with em in the rocks IE, Big Bear, Johnson Valley, etc. But in the same breath I have a bud on a similar rig on same trails that has gone through about 3 or 4 that I know of because of sidewall cuts. They've been good, but honestly I'd go with the toyos this time. They're good if you're looking to squeeze a 37" in. Clearance isn't an issue for me and now I wish I went with a true 37" tire. Just my two cents, but no bad issues with em for me.
We ran the 35" version of KM2's great tire.Downside not true size,so your 37's will be more like 35's not 37's,sidewall soft but that's what gives these tires the traction it needs.For the price of these tires we went with a true 37" from falken after tearing a 3 inch hole in the sidewall



Bummer
It could happen 
