OER Parts offers a wide selection of Car Care Products for your 1979 GMC Truck. OER Parts offers 1979 GMC Truck Cleaning Supplies, 1979 GMC Truck Cleaners, 1979 GMC Truck 24" Large Car Duster with Plastic Detachable Handle, 1979 GMC Truck Mini Car Duster, 1979 GMC Truck 2 Lb Sta Dri Moisture Pouch (Set Of 4), 1979 GMC Truck Secret Formula Multi Purpose Fabric Cleaner, 1979 GMC Truck 1 Gallon Upholstery, Fabric Top and Carpet Cleaner, and 1979 GMC Truck Tint Safe Ammonia Free Glass Cleaner.