Okay, so once I get my truck up and running, I'm gonna be looking for options to get more lift on it. Right now I have some very worn out 4" springs on the front, and worn out add-a-leafs + blocks in the rear. So the question is, would I be better off to go with a 6" lift kit from a company like Superlift or Tuff Country, and just get a T-case lowering kit and extended brake lines? OR Would I be better off getting a 4" all spring lift, and using a rear shackle flip and some type of extended front shackles to achieve my 4" of lift? I'm not all that sure how shackle flips work, and exactly how much lift they give you, and I definitely don't understand the front shackle setup, but that's why I'm asking for advice. I will probably be going with a 14BFF and D44 and probably try to run around a 37" tire. Any advice/input would be appreciated. Thanks guys.