Check the listing for details. Kirkey Pro Street race car seat mounts for C5, C6 and C7 Corvette. Condition: New. Listed at 165.90 USD. These will bolt Kirkey high-back style 55s into a C5, C6 or C7 Corvette. Brackets are made of .125″ steel that is CNC Plasma cut and has multiple mounting holes at the floor for 3″ of travel. Weigh 5 lbs 2 oz per set without fasteners. Upper holes can be enlarged to use Dzus fasteners for faster seat removal. Comes with Grade 8 hardware to mount the bracket to the seat and floor. Comes coated with black textured powder coat. The back of the seat should be supported if there is a roll bar. See my bolt-on seat back brace if you don’t want to fabricate one. This is one pair for the driver seat. If you need them for the Passenger seat please purchase X 2 and make a note Use drop down to select driver, passenger or both sets to check out. Need a seat back brace for your seat?https://www.ebay.com/itm/125004170686 Disclaimer:https://hendersonraceshop.com/disclaimer/