rear differential popping noise

[TruDom]

12 bolt limited slip differential. no noise or issues when diff is cold or driving straight. will get a popping noise when making a sharp turn after say a 30 minute drive.

its done this since i've owned it. I did replace axles to 5 lug pattern and put in masterpro 80/90 GL-5 gear oil, filled to plug hole.
Do i have too much or not enough oil?
Are the clutches just worn?
any additives to help?
are my limited slip springs just worn now?
ideas?

reiterate that it is a popping/ratcheting type noise and not a constant grinding.

thanks!