I have 4 inches of lift, 33's, 4.88's, and a limited slip in the rear and no sliders. I did pretty well with that set up on the trails we took. The limited slip probably helped me up a couple ledges and a couple sandy climbs but I don't think it was an absolute requirement. I think good driving plays a bigger role on easy and moderate trails, of which, there are plenty in the Moab area. The best scenery of the weekend was on an easy road. Let me know if you make plans to come to Moab in the fall. I'll see if I can get back, it's only about 3 1/2 hours from here. You might be able to twist Darren's arm, too.
-Michael