8.25 noise

Took some readings ahead of disassembly. The ring gear has a chamfer on the back edge. With a dial indicator on that chamfer I got a deviation of 0.0125. I checked the back lash at 6 locations. I got 0.009 @ one location, 0.013 @ one location, and 0.012 @ 4 locations. Now I'm wondering if maybe the carrier is not true. Gonna pull the ring gear, reassemble the carrier, and check it with the dial indicator.