Well i heard a noise in the rear dif or my truck the other day and decided to dig a little deeper. I pulled the cover and drained the fluid and it looked like someone dumped glitter in it. After draining was complete i found 2 pieces of metal in the bottom of the houseing, one appears to be a retainer for the limited slip and im not sure what the other is. Has anybody ever rebuilt one of these difs? If so do I need that stupid case spreader tool like what is used on the front?