Chasing down bad wheel bearing

[Kurt Wubbels]

 >  Problem is me and my dad disagree on which one I need to replace.
OK turn
 > sharply to the left, roar goes away. When the car settles it comes
right back.
 > Turn sharply to the right and the roar gets a little louder.

It's the left rear that's failing. The noise will get louder when you
put load on the bearing -- ie. a hard left loads the right rear, a hard
right loads the left rear. This is especially fresh in my mind as I
replaced a failing right rear wheel bearing last night :)

-Kurt.