OER Parts offers a wide selection of Apparel for your 2004 GMC Truck. OER Parts offers 2004 GMC Truck Caps, Hats, Beanies, 2004 GMC Truck Casual Shirts, 2004 GMC Truck Children's Wear, 2004 GMC Truck Gloves, 2004 GMC Truck Jackets, 2004 GMC Truck Long Sleeve Shirts, 2004 GMC Truck Pit Crew Shirts, 2004 GMC Truck Polo Shirts, 2004 GMC Truck Sweaters & Sweatshirts, 2004 GMC Truck T-Shirts & Tanks, and 2004 GMC Truck Women's Wear.