1991 corvette bad squeaking issue

So I have a problem with my newly bought corvette. 130,000 miles, I am having issues with the rear right end. When I drive, as I go from a complete stop I can hear a rotational squeaking/creaking sound. It sounds extremely bad which is why I would even call it creaking but it sounds like a bad squeak. When I’m driving I can hear it rotating as my wheel is but as I press the gas the squeak gets louder. So if I were to step on it the squeak would be dominantly there but very fast. If I go slowly it will be a slow bad squeak sound, just wanted to get all of that clear. The sound does no get worse as I press on brakes, nor does it get worse when I turn, if anything turning makes it go away for a second. I thought it may be a grease problem in my bushings on my dog bone maybe even my spring but I’m not sure if that would create this type of sound.

I checked and the bushings on one of my dog bones is bad, one of my springs, my lower ball joint has a tiny tear but I think it would be okay. I have pictures if I could just figure out how to post them, but would this even cause squeaking?

Welcome to af. You should get this on a lift a run it in gear while a competent tech checks it out. Rotational speed could be the driveshaft or one of the axle joints.

It could also be something as simple as a dust shield rubbing