13. These are the pivot supports brackets that attach to each side of the tube. The tube for the tilting assembly will fit inside the female tube that is this mount. The forward hole in the bracket bolts to the stock hole in the top valance and air dam. Once the hood is installed and fit, then I drill the rear holes on these brackets. Slight movement of these brackets can aid in adjusting some side-to-side gaps in the front of the hood/fenders.