Bring back because mine just failed at 97,000. Basically stock car other than a tune and cat back exhaust. Taken to the drag strip 2 times and I think that is what killed it because of the bad wheel hop a few times. Not going to complain about it other than the only fix is to buy a new rear diff for $1600. waiting for the dealership to confirm the failure and that they have odered the diff.
https://www.gmpartsdirect.com/oem-pa...bC12OC1nYXM%3D
This is for 1SS A8 Coupe thae part numbers are very specific as they are different for Convertable and Coupe.