[rjs53]

Sounds like your seal took a crap. You'll have to pull the axle to repair it, which means pulling the cover. So yes even though oil isn't right there all the time the seal is designed to keep it from coming out. Its not a big job. Pull the cover remove the bolt that holds the center pin and slide it out. Push the axle in and remove the C clip then the axle pulls out. Pry the seal out put the new one in. Remember to tap it in evenly. As long as your there I would replace both.