When my rear went, it made a buzzing/rubbing sound like loud tires (too bad I thought it was my tires so I disregarded it for months), and when it finally went it was LOUD, I barely made it 10 blocks home. I mean embarrasing loud, like you'd go to the window too see what the racket was. That last block I had to run in 4wd to make it, the rear was completely gone.
2000 XJ Cherokee
1964 Ford Fairlane 500