I replaced both a short while ago and ran into this problem: Lt side... when trying to take the old wheel hub and bearing off it was stuck on and wouldn't release ......After working on it I got it to release but the metal backing for the bearings stayed on.......I had to use heat to get it off...... put the new one on after greasing the spindle......had to drive it on.....couldn't get it back off so I left it alone.......the Rt one came right off and back on.....Now why is the Lt one so difficult?.....anyone else have this problem? Bruce Senior Citizen :Bang