Seat Tracks - which is drivers side / passenger side?

Joe, Yes the driver side lever pushes back to adjust & passenger side is pushed forward. Also when looking at the tracks, you'll notice a very slight height difference between the front & rear of the track base. The taller side goes towards the front of the car....

By your description, seems like "Track #1" would be the driver's side and then the other would be the passenger side.

I guess the next thing to do is to mount them up and see if they line up with the dimples on the floor of the car, which is my '74 Duster. It's at the body shop and I'm going to have them weld in the support plates onto the floor.

Once I have them mounted, I'll take more pictures.