Any ideas on how this might of happened?it's likely that when the one hub didn't go on all the way, you didn't get the inside bearing seated properly on the dust cup .... basicly: you put it together wrong

stuff happens ... see the shop manual and follow the instructions for
"hub installation" and "wheel bearing adjustment"bearings will be available at NAPA or such, not too expensive, might as well do the set while you're at it, might have damaged the inner
Bill