I've noticed there has been some talk about paint chipping behind the front wheels/ front of the rear wheels and along the rocker panels. GM has a service bulletin (#03-08-111-002D) out addressing this problem. It calls for the installation of a "protector kit" (part# 15783524) which retails for a price of $280.15. Has anyone on here had this installed yet? If so, what did the kit consist of ?