I am getting ready to replace the seal on my 91'GT. I read through my Chilton to get an idea on what I needed to do and got a little confused. Step 3 (87-93 Chilton pg. 3-93) says: "Carefully punch 2 holes in the crankshaft rear oil seal on oppsite sides of the crankshaft, just above the bearing cap to cylinder block split line. Install a sheet metal screw in each of the holes or use a small slide hammer to pry the crankshaft rear main oil seal from the block." Is that last sentence saying to use the slide hammer attached to the screws and pull the seal that way? If so I will have to go get a slide hammer, which is no big deal, my grandpa always tells me if you need a tool once you will need it again so buy a good one. Also I don't have a seal installer either. Is there something else I can use? If not I will add it to the list. Any advise or tips that you can send my way will be greatly appreciated. Thanks!