4" BDS lift with fox shocks. 20x10 wheels, -24 offset and 34" ridge grapplers (295/60/20). Front wheels took a 1/4" wheel spacer to clear the caliper. I tried 35s and they didn't fit, would've required massive bumper trimming. The 34s still required trimming the plastic, removing the front mud flaps, and trimming the inside lower corner of the metal bumper to eliminate all rubbing.
Once I wear these tires out I will probably go with the 35s and trim the bumper more, but wasn't prepared to cut it yet on a brand new truck.