I have a complete Pure Perf set up...extremely pleased and almost rides like my F150 and 03 chevy. The spring set up front is very soft vs stock and what I have been told is on par with Carli..about 5% stiffer. I have a 4 link, as well as a complete rear set up with softer leafs and I added bags. I have 2.5 dual adj shocks in front with 2.0 in rear. This truck is now my daily driver. 6" lift no rubbing with 37x12.5x20's