Back in the olden days.. ok.. like 3-4 years ago, me and a buddy both had bone stock 99 cherokees.
we bolted on a 2" BB , 30" tires one weekend, and headed straight for uwharrie. only difference was i ditched my rear swaybar and took the time to unbolt the stock end links on the front once i got to eldorado. I will say it made a pretty big difference, as far as flex, and perceived stability. i am locked front and rear, but i would much rather keep all 4 on the ground anyway. joe spent half the weekend on 3 wheels, and mine just flexed over most everything. the 30s stuffed perfectly, barely got into the inner fenders, never hit the flares.