OER Parts offers a wide selection of Apparel for your 1966 GMC 1000. OER Parts offers 1966 GMC 1000 Caps, Hats, Beanies, 1966 GMC 1000 Casual Shirts, 1966 GMC 1000 Children's Wear, 1966 GMC 1000 Gloves, 1966 GMC 1000 Jackets, 1966 GMC 1000 Long Sleeve Shirts, 1966 GMC 1000 Pit Crew Shirts, 1966 GMC 1000 Polo Shirts, 1966 GMC 1000 Sweaters & Sweatshirts, 1966 GMC 1000 T-Shirts & Tanks, and 1966 GMC 1000 Women's Wear.