I want it done right and I dont trust anyone but me especialy after considering 4wheelparts and reading the trash they give and the work they do. I havent heard one good thing about'em. Thier mag is cool thats about it. Anyhow, every set of lift kit instructions warns about unloading the torsion bars, but they dont exactly explain how to keep from loosing my hand. I'm no stranger to a wrench or a saw or welding and if I dont know something I'll learn it-hopefully not by mistakes-so any do it yourselfers out there got any advice on unloading these things? I have a 99 IFS ext cab Sierra 4x4. The kit I like the most so far is superlift, no destruction to the differential housing and geometry stays pretty much the same. It does appear though that the way this kit goes on does lift the truck for bigger tires BUT does not by itself add ground clearance. Skyjacker is in consideration as well.