OER Parts offers a wide selection of Cooling System Components for your 1974 GMC Truck. OER Parts offers 1974 GMC Truck Shroud Hardware, 1974 GMC Truck Shroud Mounting Kit, 1974 GMC Truck Lower Radiator Fan Shroud Clip, 1974 GMC Truck Upper Fan Shroud Bracket, 1974 GMC Truck Lower Fan Shroud Bracket, and 1974 GMC Truck Fan Shroud Flange Nuts.