Yup, totally worked now. I just needed to loosen the collar on the wave springs. Cleaned up, and fresh diff fluid. Retightened the slipper and now she is whisper quiet.
Thanks for the advice guys.
MBX6T: RX8 2000—sick!!!!
Campbell Buggy Rock Racer on 3S
4x4 Pede
1987 (Gen 1) Lunchbox