My buddy has a rear wheel bearing going out in his 2006 Forester. I'm confident we can do the job but the only writeup I could find is for 2003 and back. We do have access to a 20 ton shop press. Or I could just get a new hub assembly. My main question lies in what bearing to purchase it shows a "rear wheel bearing" and a "rear INNER wheel bearing". What's with the two bearings? Any other tips you can provide would be much appreciated.