Part Number: 23-4508 UOM: 1 - KIT Summary:GMA billet aluminum front brake caliper dual disc kit. Kit includes all spacers necessary for multiple applications, not all hardware is necessary for all installations. The spacers and fittings that are used will depend on installation type (original or aftermarket), fitment year, wheel style, wheel size and manufacturer. Location: Front Finish: Chrome Fitment: XL 1978-1983 FX 1977-1983 FX 1980-1983 Tech. Notes:23-4521 - GMA Piston for Front Brake Calipers 23-9169 - SBS Carbon Brake Pad SetCountry of Origin: USA