What year A body do these seats belong in?

[wjaholic]

I picked up a set of bucket seats from a swap meet years ago. I am going to recover them and am kind of confused what year they are. Does anyone know what year they are? Would seat covers from another year (70-72) fit?

 

[EL5DEMON340]

those look 73 to 75ish, the 70-72 wont work,