really? look at your avatar - if you measured either side and set from there; there could be a problem
One presumes, as he's a Hummer owner (and obviously quite smart and discerning) that he realizes without need for typing that the ground must be level too.
I totally get why you said it, though, Jeep and Land Rover owners also sometimes mistakenly come into this site - so you want to make sure they don't leave with the wrong impression - but I just don't have time to pander to the lowest common denominator.
actually the only reason why I said it is because the OP was asking some very basic questions, (or lowest common denominator questions I guess) like "how my tire size will affect my center-of- hub to fender lip measurement" when most all of us know that tire size doesn't effect that measurement.
So based on that alone I felt I needed to cover the basics of: if you check your radiator core support while parked in a driveway with say 1% of slope to the side, not everyone will see that 1% of slope, thinking their driveway is level, and therefore if they make their torsion bar adjustments to get the radiator core support level, and not check both sides with a tape measure they effectively just put over ½" difference in height between sides.
Or even say ½% slope, (almost invisible to an untrained eye, and only 1/16th of a bubble past the line on a level) you still get over ¼" difference between sides.
Same goes with tire pressure. If you are on dead level ground, and don't notice your left side has 25 psi, and your right side has 35 psi, depending on how much the tire sags lower (who knows how much, different for each tire model) and you check with a level on your core support, you just put however much your tire sag height difference into your suspension. I'll state more than likely though that this much difference between sides is likely just fine and close enough.
Of course most of us know these things, and will counterbalance for these variables. But for the people asking the basic questions, maybe those variables just got put into the suspension.
I apologize before hand if I sound like I'm trying to argue, I'm not. I'm not one to argue much over the internet. Just stating my 2¢ and it can be taken or left to rot. I hope I didn't come off ornery or defensive. I love the H40, and am here for the same reasons as everyone else.