you could probably drop the box an inch or 2....but you'd have to cut the frame-rail off behind the box...lower it...tack it in place...then reweld & beef up the modified frame rail.
BUT...you'd still have to deal with the tips of the frame rails where they were cut according to the instruction manual....
Let me get some pics.......you can see from the passengers side frame rail that there's only about an inch more the fender can be dropped before it hits the modified frame rail....(you could chop off more of the passenger-side frame rail to lower the fender/cab...but you'd definately have to lower the steering box an inch or 2 first!
NOTE: I made sure EVERYTHING fit correctly on the chassis before I repositioned the 4 cab mounts!!!!!!!!!!!!!!!!!!!!!
drivers-side front cab mount--rivets drilled out--OEM cab mount has been repositioned by me to be able to use OEM rubber grommets/OEM bracket....
drivers-side rear cab mount also repositioned so I could use OEM bracket/rubber grommets
the stance looks O.K. following the directions of the instruction manual....the bottom of the running boards are 9" from the pavement...that's low enough for me--I wasn't after the old school streetrod-runningboards-down-in-the-grass-look.....I didn't want the tires-up-in-the-wheelwell-look either....
just be positive the steering linkage will not bind on anything if you decide to lower the steering box...