Auburn Limyed slip question

[IthinkIcan]

I have a noise/feeling in the rear end at very slow speeds and turning (ALOT OR A LITTLE), I have a 8.25 with an Auburn limted slip, the rear has been in for over a year noise just started. pulled the diff cover today and see nothing wrong. any help would be nice.

 

[StylerG]

mine does it when the additive gets out of whack. Id try and refill with the correct amount of additive (3oz for every quart of oil)