Ran across this thread when researching body sag on my Max IV with factory roll cage. After running my Max IV with AquaTorques and 3" wheel spacers I noticed the front tires were starting to rub on the tub slightly. It even sat with a slight rake. I think the previous owner trailered it using the front winch to hold it secure. I feel the machine needs a support bar but I needed to lift the body first. I picked it up with my two post hoist lifting it by the cage.
In the next picture you can see where the front tire was wearing into the body lip. The AquaTorques tape 24" across with no air which is how I am running them now. Also notice I have it hanging to the point that the body is actually being pulled up enough to bend it in front and behind the roll bar. I heated the tub with a heat gun and let it hang over night. In the morning I had 4" of clearance between the tub and tires.
Letting the the Max down until the body line was level gave me 3" of tire clearance. If I let it all the way down to on its own weight I have 2.5". I plan to build a support bar that doubles as a grab rail to hold it level and maybe keep the 3" of clearance but that will come in another post.