I know some of you will think bad thoughts about this , but after 4 years of rough riding and constant bottoming out, I have removed the drop kit from my 2003 2wd Yukon and have restored it to stock nose bleed ride height. I wish to put the z-71 jounce stops on it and was wondering what the part numbers were for the fronts and rears so I could order them from GMPARTSDIRECT. Hell, I would be completely happy with the part numbers for the stock jounce stops for that matter. For those of you interested, I had installed the McGaughys kit with keys and rear springs because I was not wanting to upgrade my wheels to 17 inches or bigger, the ride quality with just the keys is less than smooth so up she goes until I can come up with plan B. Anyways, if anyone has the elusive part numbers, I would really appreciate it. I have the numbers for the fronts so actually all I really need are the rears. Thanks, Mitch.