My 67 Coronet 440 has a rear seat installed but I am not sure if it is the correct seat or not. It has the plastic piece installed in the upper half in the center for speakers. I am not too concerned about this seat being the correct one or not. Can someone tell me how to remove both the upper and lower rear seat?
Thanks,
John

 

the lower seat would be held in by a couple of nuts at the bottom front or just clips in to place. then once the bottom is removed the back is then unbolted.

 

In some cases, the upper section of the seats is held in by straps that were welded to the floor pan. Pretty weird. Most A body car seats were held in with bolts

 

Bottom of the seat can be removed by pushing the very bottom in and pulling up. (both sides) Then you can remove the top. Will have either twist tabs or bolts at the bottom.
IT sounds like you have a Plymouth rear seat ???? instead of the Coronet one