[GriffinRU]

That doesn't look so good... Are you sure the front diff was shimmed properly?

Yes, it was shimmed. Maybe a little bit less tight then stock.
And I did couple light runs to break-in differential.

You sure it didn't get loose from the diff?

is this because of the too hard brakes?

I do not know, really. I do not even recall when that happens; just notice noise and erratic behavior of the front end.
Maybe it was over hardened from manufacture or just a faulty ring gear. There is no a single scratch on pinion gear.
Does anybody know where to get ring gear? Differential itself is in top condition.
Artur