Have a pair of high back bucket seats, were in a 67 Dart parts car, but are not 67 Dart. They each have an electrical pigtail coming out of them. Any help with Id appreciated.

picture of the bottoms

It's a little hard for me to tell, but the tracks look like 73-up A body. They may be 74-76 due to the one track on the inside of the drivers side seat when they had cat. convertors installed.
Maybe someone else can say for sure.
Matt

Could also be F body from a Aspen or Volare.

The pigtails are for the seat belt sensors.

If you remove the aftermarket covers, post a photo of the original material if it is still under them, that would be a great clue.

The tracks may have date codes stamped in them as well.