By far, your biggest limitation to flex is the sway bars - removing them for 4 wheeling makes a night and day difference. I occasionally tow a trailer with mine as well, and don't feel safe having the swaybars removed for that. With an air ratchet, I can remove my front sway bar in about 5 minutes for a wheeling trip. The rear takes about 30 minutes to remove due to having to remove a wheel and a shock to get the sway bar out.

95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes