This defrost defroster dash vent duct for Chevy and GMC trucks from 1973-1979 is a vintage part that is made in the United States. It is designed to fit specific models and does not have universal fitment. The part is manufactured by Chevy and the OE/OEM part number is GM. The vent duct is suitable for use in air conditioning and heating systems in cars and trucks. It is categorized under Other Air Conditioning & Heating, Air Conditioning & Heating, Car & Truck Parts & Accessories, and Parts & Accessories on eBay Motors. Please refer to the aspects listed above for more information about its brand, manufacturer part number, and performance.