I rebuilt my lsd about a thousand miles ago and have reason to believe that its now making a squeaking noise. When I turn at low speeds it sounds like a seal barking, to give you a better picture. I lubed up all my bushings and still nothing so I am assuming it is my rear end, especially since the sound is coming from the back of the car. The fluid level is good, maybe i need more limited slip additive?

 

If you have the right amount of additive it's probably fine, it may just be one of the tires chirping slightly from the bias in the unit. They won't always 100% differentiate in a tight turn.

 

I have a ford 9inch that will do the same on really tight turns.

Does it do it on all turns or just tight turns?

 

It does it anytime I turn onto another street, or into a parking spot. The turns aren't always that tight. Now that I think about it I may not have gotten all the additive in. I mixed it in with the oil so I could pump it all in to the diff but I didn't use the whole jug. I'll try putting a little more additive in.

 

I would add the extra additive and then go to a parking lot and do some turns back and forth, then a couple in reverse.

It looks silly, but it works. (if that's the problem)