Originally Posted by SaharaBlackNo1
Yes, it's fine to run this combo if you live in a totally flat area.
Even then it's pushing it. I live in a totally flat area, the steepest hills around here are the on-ramps on the freeway, and while 4.10's with 37's is not that bad, at least after reprogramming, you'll soon get fed up with not being able to hold top gear with a head wind. Now if you do mainly around town driving you would be okay, if you do a lot of highway, spring for the gears. Of course you could always run the 4.10s, and do the gears later.
The KM2 is an excellent off-road tire and very well mannered on-road too. I've just switched to MT/R's with Kevlar, which are good on-road, although not quite as smooth as the KM2s, as to off-road I'll find out in a couple of weeks, but I'm expecting good things. Both do well in the sand for an MT, but there are better sand tires.
Crushers are supposed to excel in the sand, okay in mud, not so good on rocks due to lack of sidewall flex, and are noisy on-road.
You may want to look at some of aggressive AT tires out there, which will fair better on sand and in wet conditions.