That sucks big time. I have a Phantom Grip LSD in my 6 which I installed back when the car had 3k miles on it(it now has a little over 12k miles). I have been drag racing(around 100 passes with drag radials) and driving the hell out of the car for the last 2.5 years and have yet to have a single issue. Since your rear was out recently I'm suspecting that something wasn't 100% when it was installed last..............but then again these rears are put together so easily an infant could probably do the install.