OER Parts offers a wide selection of Apparel for your 1966 GMC Truck. OER Parts offers 1966 GMC Truck Caps, Hats, Beanies, 1966 GMC Truck Casual Shirts, 1966 GMC Truck Children's Wear, 1966 GMC Truck Gloves, 1966 GMC Truck Jackets, 1966 GMC Truck Long Sleeve Shirts, 1966 GMC Truck Pit Crew Shirts, 1966 GMC Truck Polo Shirts, 1966 GMC Truck Sweaters & Sweatshirts, 1966 GMC Truck T-Shirts & Tanks, and 1966 GMC Truck Women's Wear.