the xterra is a goofy vehicle in its own right, much less a body dropped xterra. Anyways, 3 inches may be a lot. I think 2 inches would be prime. 3 inches eliminates a lot of suspension travel, and the springs needed to keep from bottoming out would leave something to be desired in ride quality. Belive me, i have a dropped 240 (2 inches), and though it doesnt have much room to play with to begin, it rides like a gokart. My dad hates it, lol. Hell, keeps him from driving it when its in the way of the other vehicles.