Just did mine... Dropped the rear about 3 inches. It's about all you can do before having serious camber issues. Rides great though!
Can't wait for someone to come out with a proper drop kit for it... I want it lower!
285/60r20 on mine with the Rough Country front level kit. Rubs slightly at hard turn only in reverse. I have to imagine that 295/60r20 would rub worse, possibly in forward motion.