Slight lowering with factory keys and bars?

[got2haul]

First, the side-to-side measurements of my truck are off by about 7/8 of an inch. That being said, I'd like to level the truck side-to-side and lower the front by an inch at most overall, which means the taller side would come down almost 2 inches. Is this do-able? What's impact on ride smoothness/harshness? Is an inch overall too much? Is there an easy way to gauge how may turns it takes?

 

BTW, my truck is a Sierra Denali, which has the same AWD drivetrain and nearly the same suspension from the factory as the Siverado SS. The primary difference is 1-1/2 inch blocks are used in the rear to lift it some. The front z-height is a little taller on my truck than the Silverado SS.