Diff Carrier Bearings - thrust side?

[steve davidson]

Hi all,
 
I'm reconditioning a diff and hit a little snag.  The Woodrow book simply states that the diff carrier bearings need to be pressed on while the Essex Club guide makes a point about the orientation (thrust side facing out).  My new bearings are not marked with "thrust" so how do I know which is which?  See attached photo with a pink and blue side.
 
Thanks