I am not going to use the modern seal since I have to split the cases to install it. The original slinger seal will knock out fairly easily on a press. You support the case half around the bearing and press the slinger seal out inwardly. The slinger is very soft steel and will not damage the bearing race as it slides out of the race.
LOL,well I guess that will be me too. I wil throw the new seal in a box until next time the cases come apart, mabye when my son rebuilds the bottom end in another 35 years time. for some reason I was thinking it went into the cases from the outside. Darn!