OER Parts offers a wide selection of Body Components for your 1978 GMC C15. OER Parts offers 1978 GMC C15 Trunk Components, 1978 GMC C15 Interior Panels, 1978 GMC C15 Latches and Hinges, 1978 GMC C15 Partitions, 1978 GMC C15 Spare Tire & Jack Accessories, 1978 GMC C15 Spatter Paints, 1978 GMC C15 Trunk Insulation, 1978 GMC C15 Spare Tire and Parts, 1978 GMC C15 Trunk Lock & Key, and 1978 GMC C15 Trunk Mats & Carpets.