Just had a 6" superlift installed the Monday before last, had it removed this Monday. Truck was unstable and handled like Crap, 37" procomp extreme A/T tires im sure didnt help. My advice is to stay as low as possible and not go bigger than 35" tires. Opted for the procomp 3" lift and the 35" tires w/ mx6 shocks. I will post an update when my truck gets home today.