Another wiper motor question

[sprint29]

I was trying to install a wiper motor that I have into my 36 pickup and was not having any luck aligning the control arm with the holes in the cover plate. After some time of wondering what I'm doing wrong I finally realized that my on/off arm is on the opposite side of all the pictures I was looking at. If your sitting behind it, it's on the left side. All the pictures that I've seen, it's on the right side. Does anyone have any idea what I've got?
Thanks
Mark