The 1974 Firebird GM AC Blower Box Harness is a vintage part manufactured by General Motors in the United States. It is designed specifically for the right side of the vehicle and does not have universal fitment. This accessory is not a performance part and comes with no manufacturer warranty. Ideal for classic car enthusiasts looking to restore their 1974 Firebird's air conditioning system to its original condition, this blower box harness is a genuine GM part that captures the essence of the era.