The Truck Hardware Gatorback FX4 Logo'd Mud Flaps are designed to fit perfectly in the FRONT of Ford F-450/F-550 trucks. These flaps offer great protection for your truck and their design ensures that there will not be any debris that gets passed these flaps. You will appreciate the attention to detail in these flaps. The flaps include a lifetime warranty on the rubber portion of the flap. If the flap comes off the truck or is damaged to due to normal wear and tear let us know and we will send you a replacement piece of rubber at no charge.