460 Ford flywheel cover is fabricated from aircraft quality aluminum and highly polished. The flywheel covers will accept our driveshaft cover (10625). They are light weight and will not support engine weight. If driveshaft cover is not used, bolts must be installed where cover mounts to secure backing plates. The flywheel cover mounts by using the bottom two engine block bolts and the top mounting tabs must be tapped into a plate style back mount.