Depends which way you are holding and looking at the piece
If you are looking at the side that the spring goes into, it will be reversed from looking at the side the spring would stick out of. If you know what I mean Vern.
Regardless of that. You want to set the spring so you have to wind it the tightest to get the plate installed. Use which ever end hole makes it harder to assemble the unit.
Watch this random video I found. It shows him winding the spring tight to assemble.
[video=youtube;kmGY0qsgW4Y]https://www.youtube.com/watch?v=kmGY0qsgW4Y[/video]