Have a silly dilemma, I have two quarter window regulators, but they are both the same, so I have
either two rights or two lefts. I'm having a hard time telling L from R.

Can somebody please post a picture of one, either L or R, so I can tell definitively what I actually have.
I've seen internet pics that are contradictory.

Thanks much !

I do not have a picture but some factory drawings I have scavenged.

On a manual window regulator, if the main crank arm is rotated to be vertical to the main body the gear will arc back into the rear of the car when installed. If that makes sense.

The picture of the regulators should be Left Rear regulators. The manual in the picture is for a Challenger. IIRC