First time for me.  I know I need this: http://www.autopartswarehouse.com/sku/Timken/Wheel_Bearing/TM513056.html

 

I am assuming that it one bearing and race.  Where's the rest of what I need [beside seals]?  Do I need another race or just a bearing?  Thats a big race, are there 2 bearings in it, etc?  Why cant I find a rear outer wheel bearing for a 4wd? 

Got confused and initially gave bad advice. Check out Rockauto.com for the bearing.. 

Edited July 8, 201411 yr by john in KY

AFAIK, the separate inner and outer bearings for the rear have over time been replaced with the single piece unit you pictured.

OK, thats what I wanted to know.  Thanks!