Lift the front end off the ground and spin the wheel by hand and you should detect the bad wheel bearing, although I cant say I ever heard one squeal...more of a whirring type grinding noise. You must remove the entire hub assy to change the bearing and its about a 2" thick bearing pressed in and retained with a big C-Clip. Do not attempt the job yourself...The guy at the garage who pressed my old one out and new on in, could have injured himself when my old one shattered when taking it out. Although I did remove the hub assy myself and bought the new bearing at around $45 Can. and $35 Can to have them press it out and install new one.So it cost me $80.00 to do it myself not incl my time...I have heard of people paying as low as $150 for the whole job. So its not worth doing yourself.