Ran across a Youtube video on this seal puller and after fighting with a few seals using the drill / screw method thought I would give it a try. Found one on eBay for about $17.00 shipped.
Pretty simple, hook the foot in behind the seal and pry it out. Sure allot easier than any other method I have used and lessons the chance of messing up the shaft or seal seat.
Not associated with this in any way, just a handy tool that is saving me some grief.https://www.youtube.com/watch?v=YrVwf6BHLTw