OK, I got a idea. The previous person that worked on the bike, tried to pull the flywheel with a two prong puller and was unsuccessful. He put a a lot of force on it, as the flywheel, where he grabbed it with the two prongs was bent, outwards. The threads look good, but the force of the center of the puller, might have belled out the starting end of the threads. I'm going to pick up a 8mm die and see if that can correct the belling of the end of the shaft.