For FORD SUPER DUTY PICKUP 2008-2015 (To 11/2014) #1 REAR BUMPER RETAINER (OUTER BACKUP SENSOR RETAINER) LH #2 REAR BUMPER RETAINER (INNER BACKUP SENSOR RETAINER) LH #3 REAR BUMPER RETAINER (INNER BACKUP SENSOR RETAINER) RH #4 REAR BUMPER RETAINER (OUTER BACKUP SENSOR RETAINER) RH