Wassup, as far as I know the Z-71 is 4X4, taller suspention, skid plates, body stylings like fender flairs and front bumper. Maybe more to it, not sure, but u could remove the flairs with a heat gun and lower it to look like a 2wd. A buddy of mine has a 2004 Z-71 tahoe he lowered 3/5.5 and is...