Most leveling kits say "if your vehicle is.equipped with an f350 rear block your vehicle will be 1" higher in the rear." If you need only an inch, you'll have to run an add a leaf in the front.
@ToMango-You realize that most 4" kits barely lift the rear? Ford's are 3" rake most of.the time. Well, they used to.be.The 1st gen Superduties were. I'm not sure anymore. My last 4" kit only contained add a leafs for the rear and new ubolts. Gay...
My opinion of lifting is very cut and dry. 6" or leveling kit. 4" is a waste. 8" can be.cool if the tires are smaller than the max size. For.example, an 8" lift and 37s on 22s is.nice.
I do......which is why I pointed it out.