Alright, how can I tell the difference between a self-aligning and non self-aligning rocker just by looking at it?

 

Look on the tip of the roller ( where it comes in contact with the pushrod). On a non self aligning rocker, you will see just the roller tip, but on a self aligning rocker, you will see "ears" that hang down on either side of the roller tip.

 

Thanks, that's what i needed.