Core bucket seat frame bottom for the Mercury Cougar or Ford Mustang. This unit is the same from driver side (left hand) to passenger side (right hand) and is the same whether you have a standard, decor or XR7. The base is the same whether you have center release or side seat back release. The foam almost will always be deteriorating, or even missing, and will need to be recovered. These units will be solid core frames taken from a Western parts car but keep in mind they will always have a hairline crack or two and these should be addressed prior to installation. Seat tracks are sold separately. Seat hinge covers and hardware available separately.