This is something that started a few months ago, but it didn't seem quite as bad. More recently, I've noticed that just normally getting on the gas (not flooring it) when going around a corner, I can usually hear a mild squeak, maybe like it's dragging a wheel. If I get on it, one of them will spin up quite easily.

I have a 98 LT. I'm guessing that it has a limited slip diff? Maybe some do and some don't, not sure. I'm just wondering if there is something with those that wears out, or...not really sure. It's just different than how the Blazer used to act. It does have 170K on it now.