ok, that makes a bit more sense. As far as I know there isn't anything between the inner and outer race. There is an outer and inner dust cover, however.
I'm not totally sure about the rear as my car is AWD, but on other FWD cars i've done you pretty much just buy a new hub assembly, which has wheel bearing in it. Much easier to replace. You should just be able to take off the axle nut and the assembly should slide off (may need a puller, they don't always want to come off easily)
and yes, you will somehow need to get the wheel bearing pressed into the knuckle, and the hub pressed back in. I have this tool from Harbor freight that I used:
http://www.harborfreight.com/cpi/cta...emnumber=66829
Not as easy as a hydraulic press but it gets the job done.
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