I had bearing go bad on my other car. I checked mine by jacking the car up (and supported), then holding the tire while it's still on the car try to move the tire side to side the way the tire would turn if you were turing the steering wheel. Don't force it, just try to wobble it slightly. If it moves the bearing in the hub assembly is bad. Any maching shop should be able to press those in for pretty cheap. Hope that helps...
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