new to the forums. I have a 2004 single cab pwerstroke with a 6" lift and 315/75-r16 tires on it from when i purchased it two years ago. i would like to bring the truck back down to the ground. at the very most 4" of lift. i basically like to have the original lift back but with a lvl kit. as it sits, the truck has six inch rear blocks, over arched front blocks, dropped pitman arm, drop track bar brack, adjustable track bar, and extended sway bar links. i dont really know what the stock is. for the rear blocks are they 4"? and for the front springs id like to go with the snow plow package springs. what all do i have to get to achieve something like this? and what are the largest size tires i can get away with using just a lvling kit?