Just replaced the hub on a 92 last week. I got one from a junkyard, since it was cheaper than getting new bearings pressed in. But I am not sure if yours is a bearing noise. Bearing noise usually develops slowly, over time, in my experience, and sounds like a hum.
To test if it your passenger side bearing: check to see if the noise gets louder when you take a left turn, and quieter when you take a right turn.
To test if it your passenger side bearing: check to see if the noise gets louder when you take a left turn, and quieter when you take a right turn.