Big Bang Theory, Why is the nose of my Diff pointing straight down...

Well, finally got the cover off, gears are pretty blue and, very fuzzy/worn.

The Big Bang seems to have split the carrier right through on one side.......




I suspect this is the bearing spacer from the rear pinion bearing. Pinion doesn't turn, so, I suspect the main Boom was the Pinion Bearing coming to pieces.....




More pics after a big nap.............