Replacing 727 Low/Reverse Band Pin O-Ring in Car

Remove the neutral safety switch with the front jacked up. When it quits draining, jack up the back. Douse it good with carb cleaner then air pressure dry. If you can pull it in and out with a magnet to clean if better then do so. Then push it all the way in and silicone. Personally, I would chop off the tang and pull the pin enough to replace the o-ring and silicone it in.