RealTruck carries a great selection of custom door sills your 2006 Ford F550 truck. Find a wide selection of door sills you need to enhance your Ford pickup. RealTruck carries stainless steel, billet aluminum, diamond plate, and illuminated door sills for your 2006 Ford F550. We also offer free, fast shipping, and the best customer service you can find. Shop now or give us a call at 877-216-5446.