I guess good news
A few months back I had a frpp lsd and motive 4.10 gears installed in my car, over the past few days I had experienced a extremely bad whine and almost like a grinding noise from the rear-end when I made a right turn. I took it back to the shop that did the work and I got the diagnosis today, apparently the shims on the passenger side for the ring gear "walked" themselves out of their slots and that's what caused my problem. They said they will be installing adjustable shims so this doesn't happen again. Anyone heard of this, would you say this is more of a installer problem or just bad luck, nothing has been damaged, so I won't be upgrading to the 8.8 quite yet.