I have two questions regarding seats in a '72 240Z:

1. Can the seat bottoms or backs be swapped from driver's side to passenger's side?

2. Right now my passenger's seat has two brass grommets in the lumbar area, but the driver's side has none. Is this correct?

Thanks for your input on this.

Gary

Well, I bought two more seats that were in marginally better condition and have some observations. The seat backs are not symetrical. There is a bigger side bolster on one side of each seat back. I am not sure why the designer did this, unless it was to allow easier ingress/egress. If the smaller bolster is placed toward the door, the four grommets in the lumbar area end up on the passenger side, so I may be wrong about the small bolster toward the door. The seat backs do appear to be interchangable except for the bolster issue. The seat controls pretty much dictate that the seat back release lever be on the side toward the door, so the seat bottoms are not interchangable from the driver's to the passenger's side.

I think you've found the non-symmetrical argument to be valid. The four ventilation grommets should be on both seat backs.