CONVERTIBLE. Lower brace. A component which provides support or reinforcement for the Floor Side Rail. Supporting sheetmetal structure attached to the underside of the floor pan. Center c'member. Center floor pan reinforcement. Center support. Cross bar. Cross rail. Cross sill. Floor Pan Crossmember. Floor Side Rail Brace. Front c'member. Front floor pan. Front panel. Front support. Lower brace. Rear crossmember. Rear sill. Seat c'member. Side rail sill. Upper c'member. Upper REINFORCED.