1969-70 Ford Mustang& Mercury CougarLH Elbow Duct(Ford part #C9ZA-19C626-C)This listing is for an original driver-side elbow (LH) duct for all 1969-70 Ford Mustang & Mercury Cougar with factory air-conditioning. This is the piece that mounts inside the dashboard, connecting to the ball-louver, ultimately connecting to the rest of the ducting system.Shown as #1 in the assembled ducting photo.