This truck is a daily driver so the build has been kept simple and neat. 2.5" Rough Country leveling kit with 285/70R17 BFG KO2 All Terrains. Wheels are XD797 17x9 with a -12" off site and 4.53 backspacing. There is no rubbing and has approximately 3/4" clearance at full turn. I ran roughly 3,000 miles prior to adding the leveling kit and wheels/ tires. I was averaging about 19.5 MPG. Since the mods, I have decreased to roughly 17.9 MPG's but have not been running the same route as the first 3K. The next two weeks will provide a better idea of expected MPG's.