Tested and inspected neutral safety switch for the FMX transmission installed in 1969- through early 1972 Mercury Cougar and Ford Mustangs. Found on cars before build date 12/1/1971. These mount in the shifter bucket, see your shop manual for installation adjustment.
Look for a transmission code of X on your door data plate.
Replaces Ford Part #: C9ZA-7A247 or C9ZZ-7A247-C, SW 903.