ok so apparantly there is a snap ring and no they are not interchangable.
NEW QUESTION
if the spindle/bearing seperate a bit from the hub, the snap ring is presumably gone. I assume it's safe to say that if i get a new snap ring and seal, that would fix it, but I'm not sure 100% if I can get away with not replacing the hub because it might have come out because the hub is worn out where the snap ring goes into.
does anyone know anything about courtesynissan? reason i ask is this:
http://www.courtesyparts.com/sentra-...3094_3095.html
and this:
http://www.courtesyparts.com/betasit...2924_2925.html
show the same parts, however, when you click on them, the sku changes b14/b15 (different chassis of course).
are they indeed the same or no?