It depended on whether you had a bench seat (should have the hard shell) or the divided front seats (no shell. Bench has a fold down armrest, "75 twin seats had no built in armrests, just a loose pillow secured with straps. This may have changed later in production. '76 bench was the same as the '75 , but the twin seats had the twin armrests that fold dow from the seat backs. Hope this helps you !