Lift and big tires don't do diddly squat without traction. If you don't have at least a limited slip you may find yourself frustrated. I would suggest a locker in the back, limited slip or selectable locker in the front.
Yuh huh.
Did a 2.5" on my Expedition (open diffs) and stuck some 34" Mud Terrain KM2's under it.
It's the most WORTHLESS, HELPLESS P.O.S. I have ever had off-road. I joked with my brother when he retired his Trailblazer and bought an Equinox. But I think the Equinox would go anywhere my lifted "off road" SUV will go.
Tahoe Z-71 coming up !!