Originally Posted by
ls4546 Does it move side to side or up and down. If it's side to side it's probably a tie rod end. If it's up and down it's a wheel bearing. And usually a wheel bearing with play will make noise when driving, kind of a humming/buzzing type noise and it goes away when turning left or right. Usually, but not always.
Yup, grabbing the wheel top and bottom if you feel play that's the bearing, if you grab the wheel front/rear and wiggle and you feel play (and can often see it at the tie rod) then its the tie rod end.
I had my big axle nut come loose only about 1/4 of a turn, but it was enough to damage my bearing becuase i didn't catch it quick enough.