I have up for sale is a Rear seat cover for a 1969 A-body. I have no idea what other years this would work for. I picked it up quite a while back at a swap meet thinking it would work for my 66 but it is a little too big for my back seat.
I am going off the part number that is written on the tag from Legendary to tell the year.
I called legendary and they confirmed that the full part number is the one below.
Legendary Part # AA69CLV0081
69 DART SWINGER/VALIANT 100 SEDAN REAR - CHARCOAL/BLACK AA69CLV0081152
Double Stitch Rib Grain Inserts, and Coachman Grain Skirts, Made In USA.