Eaton TrueTrac noise when hot during slow turns.

Resently installed a set of 3.23's with a Eaton TrueTrac.Took it on a 60 mile trip and during slow turns it acts like a locker. I used 80/90 without additive as instructed.On the road at speed it's nice and quiet.It locks during hard launches with equal tire marks on the pavement.
Normal ? Am I paranoid ? The car is radio delete so I can't turn it up.....
It is quiet until fully warm.