OER Parts offers a wide selection of Apparel for your 1939 GMC Truck. OER Parts offers 1939 GMC Truck Caps, Hats, Beanies, 1939 GMC Truck Casual Shirts, 1939 GMC Truck Children's Wear, 1939 GMC Truck Gloves, 1939 GMC Truck Jackets, 1939 GMC Truck Long Sleeve Shirts, 1939 GMC Truck Pit Crew Shirts, 1939 GMC Truck Polo Shirts, 1939 GMC Truck Sweaters & Sweatshirts, 1939 GMC Truck T-Shirts & Tanks, and 1939 GMC Truck Women's Wear.