Going to go with the 315/70/17 tires and a leveling kit for now. Truck is an 05. Not going with the spring spacers but rather new springs in the front. Heres the question...The 2 inch lift springs and the 4 inch lift springs are the same price,so what would it hurt to go with the 4" springs and add taller blocks or another leaf in the rear? Essentially having a 4" lift all the way around. I know new shocks is a must but someone please enlighten me further on this.