NOS FORD 1964.5-Early1967 Ford Mustang, Fastback, Coupe, Convertible, GT, Pitman Arm.  FOR 1" Sector Shaft.   For All 1964.5-1966 Mustangs with V8 and 1967 Early Mustangs and Cougars with V8 and Power Steering and 1" sector shaft only Most 67s had 1-1/8 shafts so really make sure this is right for your 67.    This is an ORIGINAL FORD new nos PART.   Casting Number C4ZA-3590-A