2007 Tahoe LT with 275/60r20's. Before the leveling kit they would leave a very light run mark on the inside wheel wells and on the sway bar. Now with the 2" rough country leveling kit (under strut kind) they clear fine. I leveled it because I plan to do some 20x10 with -19 to -24 offset over the next few months along with tires that come out to be 33x11-12.5 depend on price and tread patterns. Before it sat 36" in the front and 38 1/4 in the back. Now it's 37 3/4 in the front and 38" in the back. Rides the same as far as I can tell and install took 30-45 minutes. My dad as the same kit in his 2008 1500 Sierra and that sits 1 inch higher than my Tahoe. 
