OER Parts offers a wide selection of Dash Components for your 1990 GMC Truck. OER Parts offers 1990 GMC Truck Clusters, 1990 GMC Truck Instrument Cluster Case, 1990 GMC Truck L.E.D. Indicator Wiring Set, 1990 GMC Truck Instrument Cluster LED Upgrade Set, 1990 GMC Truck Cluster Assembly, 1990 GMC Truck Dash Instrument Bulb Socket , 1990 GMC Truck Digital Instrument Cluster, 1990 GMC Truck Instrument Cluster Seal Kit, and 1990 GMC Truck Instrument Gauge Decals.