OER Parts offers a wide selection of Body Components for your 1989 GMC Truck. OER Parts offers 1989 GMC Truck Trunk Components, 1989 GMC Truck Interior Panels, 1989 GMC Truck Latches and Hinges, 1989 GMC Truck Partitions, 1989 GMC Truck Spare Tire & Jack Accessories, 1989 GMC Truck Spatter Paints, 1989 GMC Truck Trunk Insulation, 1989 GMC Truck Spare Tire and Parts, 1989 GMC Truck Trunk Lock & Key, and 1989 GMC Truck Trunk Mats & Carpets.