A stroke of good luck. I helped another POG member with a hub seal leak and found the washer with the ears was not even there. The only thing that kep their hub from separating from the coach was the outer nut was on tight.

It is examples like that which encourage me to urge owners to remain with their coaches while they are being serviced and to observe the work. Your ears may have broken off due to a mechanic using the retainer way too many times to try to save a dollar or two.