Power steering gearbox leak

Mission complete, thank you so much for those of you who replied. Used a small center punch. First tried a 1/8" bit, but the drill moved around on the seal. Used a 1/16" bit and screwed in the drywall screw with a Phillips screwdriver and the seal came right out. Drove there seal in with a deep well socket.The national 7188S was the correct seal for my 66 barracuda with power steering. Thanks again, you guys are AWESOME!
Great. If/when you need to replace the lower seal, there's a tip for that one too. No drill or screw required.
A note for others... see in the above pic how the screw blew out the outer wall of the seal? Try to avoid that. Center punch mark over on the seal, drill small, angle the screw toward seal wall. You don't want to damage the casting wall too much. RTV there regardless. Happy moparing