NOS Motorcraft wires WR-3812   DIAZ-12259-C  this box was opened for the pictures,,been on the shelve 30 plus years  LOOK CLOSE AT THE PICTURES  Motorcraft  is printed on the wires  A picture of the application guide is also pictured  the WR-3812 is listed for 68-69 390-427-428 Mustangs  69-72 Thunderbird   and a few other things   message me if in doute about your application  MOTORCRAFT DIAZ-12259-C  SIPCON  TAILORED SPARK PLUG CABLE KIT