Just because "you've seen this" or "you've heard that" doesn't make it right. I'm not being a nitpicker. It's important to get terminology correct, especially when you're asking for help. The piece is called the distributor points cam. The entire piece with the slots in it is the distributor governor. A reluctor is an electrical device in a distributor that makes an electiral current when it passes by an electromagnet (pickup) inside the distributor. IF you have the small circlip on the top of the distributor governor removed and the governor still will not come off, I don't recommend using a puller. Spray some penetrating oil of some kind down in the hole where the circlip was and twist the governor back and forth and pull while holding the distributor shaft still. They do get stuck from time to time. Using a puller could damage the governor or the distributor cam.