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!
