Ok...So I have been shopping around for a 6" lift kit for my 2009 Chevy Tahoe SSV. The RPO code in the glove box says ZW7 (Premium Smooth Ride) , which as I understand it, is Auto leveling (correct me if I am wrong). All the lift kits that I see say they will not work with Auto ride or auto leveling. Can someone please help me figure out what lift kit I need to lift my truck? If there are things I need to do to it before lifting, let me know. Thank you for the help.