OER Parts offers a wide selection of Dash Components for your 1989 GMC Truck. OER Parts offers 1989 GMC Truck Clusters, 1989 GMC Truck Instrument Cluster Case, 1989 GMC Truck L.E.D. Indicator Wiring Set, 1989 GMC Truck Instrument Cluster LED Upgrade Set, 1989 GMC Truck Cluster Assembly, 1989 GMC Truck Dash Instrument Bulb Socket , 1989 GMC Truck Digital Instrument Cluster, 1989 GMC Truck Instrument Cluster Seal Kit, and 1989 GMC Truck Instrument Gauge Decals.