Yeah, it's a good thing I was already planning on replacing everything already. The wheel bearings on the rear axle weren't pitted but they had more play in them than they should have. And they had quite a bit of water contamination in the oil. I didn't look at how many miles were on the donor but it had not had an easy 28 years of use.
But in the next couple of weeks, every single bearing, seal, and joint will be 100% new and ready for another couple of decades.