RealTruck carries a great selection of custom door sills your 2017 GMC Sierra 1500 truck. Shop an excellent selection of door sills you need to trick out your GMC pickup. RealTruck carries stainless steel, billet aluminum, diamond plate, and illuminated door sills for your 2017 GMC Sierra 1500. 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.