What you saw was probably a high back bench seat from a 72 A-body 2-door. Some literature calls them bench seats with integral headrests. They came standard with cloth inserts and optional in all vinyl. It was the only year this backrest design was used. You can look on line at http://www.legendaryautointeriors.c...spx?id=AA&make=C&year=72&desc=dart front seat.