I had my truck looked at. I was told they could not replicate the sound. I consistently hear the sound. I was then told what it could be. They ordered parts which took two weeks to come in. I was told a week and I actually called back in to make the appointment.
The sound when turning to the left has not subsided and actually at times is now louder than before. I do not have the ability to continue to leave it for a full day during the week. I'm highly irritated with GMC service department