Band goes the flywheel
It's been about a year since I did mine, and I thought I would be smart and order a flywheel puller from someplace - it didn't fit.
I finally got pissed and used a 3-arm gear puller that I got from HF for maybe $10. I couldn't twist it off with a breaker bar, so I got pissed again and used my 3/8" air gun and whadda ya know, it came off.
Now when I say came off, I'm being nice. It makes a very nice, and resounding "bang" noise, and comes off with some some speed. Make sure you have a nice place for it to land other than your shins or your feet.
Then I went and got pissed.