C4 Corvette Seat Support Trapeze Repair Dual Kit for Both Seats Fits: All 84 through 96 Corvettes Fits All C4 Corvettes 1984 through 1996. Will Cure the "Sags" for Both Seats. Restores the Seats to the Proper Seating Height and Support. Even if your Seat Feels Fine, Most Likely you still have "Seat Sag". No Instructions are Included, please read Detail Product Info for Install Notes.