Yes, I just went and pulled them out; and I had previously opened one of the boxes. The guards are Left and Right. On the bottom of the guard, where it bolts to the valence, there is an 'L'.. apparently for Left side (I haven't opened the other box). Also inside the guard was a stamp 'SP'... check out the images I've included.
Suggestion: if you have 'original' guards needing chrome, if you have a good chrome shop, their chrome will be MUCH better than the factory chrome, and I also believed a 're-chromed' original' is preferable to either an NOS or a reproduction guard.
Gary / 69Z28-RS