Wheel Bearing Replacement

I just paid $250 for just rear bearing on my 95' (a different generation of Pathfinder, but I would imagine the solid rear axle design is not all that different) and it wasn't even the source of the noise/vibration. The truck still groans and vibrates when making heavy right turns.
I looked into doing it myself. The bearing and seal was about $70/wheel but the rear axle shaft has to be pulled out of the axle houseing with a slide hammer and if you have any hope of the new bearing lasting it really should be pressed in the the housing on a hydraulic press.
For $400 I would go for it. Just make sure that the bearings actually need to be replaced.

You HAVE to have a press to get the bearing in. Don't even bother with the job if you don't have one. $400 for parts and labor of both isn't bad at all. If one goes bad, the other will go sooner then you think. Just replace both.