NOS 1970 Ford Mustang, Fastback, Coupe, Convertible, Mach 1, Grande, Fairlane, Torino, GT, Ranchero, Mercury Cougar, XR7, Eliminator, Montego, Cyclone, GT. with Air Conditioning A/C Fixed Idler Bracket With Pulley.   For 351W or 351C Engine.   This is an ORIGINAL FORD Factory PART #D0AZ-8678-D on the box.