Crankshaft Pulley Removel

Lots of choices I would say just think for a second.
  1. In car? Put car in gear.
  2. Not in car? Use screwdriver through the flexplate or flywheel.
  3. No flexplate or flywheel? Thread a couple bolts into the back of the crank and stick a bar between them.
  4. Oil pan off? Stick a bar between the crank and block (not on a bearing surface!).
  5. Yes you can use an impact if you have one. I have a cheap enough impact that if a fastener is too tight I will have to break it loose by hand. It did work great for getting that alternator nut off, though. :)