It is super close...my mechanic that I take my stuff to made a comment about how close they are compared to the 14-18 trucks but he said it shouldn't be an issue unless the wheel is at full drop and being beat on like a trail or something. They are a suspension shop that does everything from lifts on trucks to drift cars so I trust him and he a family friend that would tell me to do something different if need be. I would suggest though if anyone is looking into a leveling kit to just error on the side of caution and do the upper spacer if they plan to go offroad at all.....just my 2 cents.