I'd replace the other rear wheel bearing first.
Have someone drive the car while you ride in the back seat.
You can tell alot from back there.
204,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
Engine Build - Click Here