9'' bearing seal..
 

I have a 9'' housing in my 61 and 5 years ago I had to replace the drivers axle bearing seal. I chalked it up to that the year before when on my first drive in the car I had a wheel come lose and that is what maybe let the new seal go by the summer after. Now this summer I noticed the passenger side is leaking a bit. It is a big bearing ford 9'' housing with the lincoln markV discs on it as well as dutchman axles.

Is there anything else I should check to make sure this isn't just coincidence? Or is it possible for it to just go after 5-6 yrs of only summer driving?

FYI it is a taper bearing style.....