OER Parts offers a wide selection of Dash Components for your 1981 GMC Truck. OER Parts offers 1981 GMC Truck Clusters, 1981 GMC Truck Instrument Cluster Case, 1981 GMC Truck L.E.D. Indicator Wiring Set, 1981 GMC Truck Instrument Cluster LED Upgrade Set, 1981 GMC Truck Cluster Assembly, 1981 GMC Truck Dash Instrument Bulb Socket , 1981 GMC Truck Digital Instrument Cluster, 1981 GMC Truck Instrument Cluster Seal Kit, and 1981 GMC Truck Instrument Gauge Decals.