usually when turning but always on take off makes a loud grinding sound ????

mechanic put that fluid in today for limited slip to try & YES the noise is gone!!!!! thankyou so much for getting back to me.....this has been a huge mystery for awhile!!!

Thank you for your response . Glad you found a tech familiar with that symptom! Always easier first hand , so at least this time I guessed right . Hope others with that same dillema see this post of yours! save them a lot of aggravation!