i need a new one soon its makeing and squeeking sound when in drive and i know its the rear passenger side bearing but how do i know if its the wheel or axel bearing and what happens if it goes out before i fix it?

 

If its a wheel bearing the will growl at you the faster you go the louder it will get. And sometimes when you turn the noise will go away until you go straight again. ive got a bad wheel bearing that im getting ready to tear into today.