First, remove all 3 existing plastic rivets from the plastic base. In order to install bottom clips, you have to carefully pull out fabric liner up and away from the plastic base in order to expose space where the metal clips for the mud flaps will slide into. Please note that the plastic base is two sided, only one side is exposed when the fabric liner is inserted into the plastic base. When you pull the liner away from the base, you will notice the groove between the two sides of the plastic base. This groove is used to keep the liner in place. 2 metal clips must be installed with flat side facing the ground by sliding each of them over the inner side of the plastic base (not the outer side which is normally seen when liner is installed). You might have to strech the clips a little with a flat screw driver in order to allow them to slide over the inner side of the plastic base. Once each of the 2 metal clips is securely in place, pull the liner back into the groove of the plastic base and install one of the 3 plastic rivets that were removed previously. Third rivet was initially removed to allow for more flexibility in pulling up the liner. Then position mud flap on the vehicle, fasten the bottom screws first but do not tighten completely yet, then ensure that you can start fastening the top 2 screws. Once confirmed, pulled the tape off of the sticker and press the top portion of the mud flap against the fender, then fasten the top 2 screws. Then tighten all 4 screws.