Let me put a few pointers out there and explain how I did this on my '95 GT. The first thing I did was to remove the 4 main retaining screws that held in the carpet, two on the piece on the very back with a phillips type design head and two that you can unscrew with your thumbs. After that, remove the black baffle that covers the trunk latch bar by removing the 4 plastic clips (these are fairly long so keep at 'em). Remove the plastic baffle along with the large piece of carpet at the back. From here you can fold back the left (or right) side carpet to reveal two nuts which hold the bumper. I believe these are 10mm and remove them. After that, there are two phillips head screws just on the inside of the tire well, and one plastic retainer clip at the very bottom of the bumper on the farthest forward part of the bumper (closest to the tire). Once these are removed the bumper should be able to be pulled out far enough to get your tools in there to remove the two metal pieces (one on each part of the reflector). These are for sure 10mm, and without a slightly deep socket with an angle can take a few minutes to get off. FIRST! Before attempting to pop in the new reflector and threading it in the bumper, thread it in your hands first. This will save you a large headache and potential replacement of the reflector (again). Finally after you have secured your new reflector into place, return the bumper to it's original position. Before installing any screws, nuts, etc. check to make sure that the two bolts go back into their designated holes in the trunk and secure them first. That makes the rest of the holes line up properly. Hope this can save you all some time on installing a new reflector!