I am replacing my front bumper (painted cover) along with a mach 1 grille delete kit on my 2004 gt (because my current one is damaged) and I'm confused about bumper install hardware kits and bumper install instructions on the web. All the kits show replacement rivets but I don't see any on my current bumper of see them mentioned in several of the bumper install instructions and videos online. Am I missing something or is this bumper cover suppose to install with just nuts and plastic push pins. Any help with this would be greatly appreciated!