I have the same squeek that scott888 describes, and also only when turning left. Are you sure though that it is coming from the rear - mine is coming from the front because I can hear it when my wife goes by me in the driveway. This problem sure seems to come up very regularly on this forum, I'm surprised it hasn't been solved yet. The sound is in rythym with the vehicle speed, so I'm thinking maybe the front cv joint, or the brakes - though they make no sound when going straight. Is the cv joint serviceable, or at least can it be inspected for corrosion or wear?