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'64 1/2 Mustangs

How to Tell the Difference

If it's a fastback, it isn't a 64 1/2 - those didn't become available until '65.

 

Standard wheel size for 1964 was 13 inch

 

Look at the hood - most have an "unimproved" or uncrimped hood with beveled headlamp bezels

 

Look under the hood for:

  • Generator charging system - unique to 64
  • Large frame-mounted horns behind the radiator
  • Horn relay under voltage regulator
  • Radiator support with battery cooling vents
  • Master cylinder with brake light switch
  • hood hinges painted gloss black
  • Eaton power steering pump (you will find both an internal and external reservoir, depending on whether or not the car was air conditioned)
  • The 289 HiPo had an aluminum water pump
  • A number of both 260 and 289 engines had cast-iron water pump pulleys
  • The 64 1/2 engines 170 CI 6 cyl., 260 V-8 2V (164 HP), 289 V-8 4V (210 HP) and beginning June of 64, a 289 HiPo (271 HP)
  • V-8 engines had a 5 bolt bell housing
  • Early V-8s also had a narrow transmission bolt pattern

Interior
  • Some had an "A" on the vent knob, but not all
  • Cruise-O-Matics were fitted with a smaller shifter handle, but not all of them were produced this way
  • The 64-1/2 had a one model year only steering wheel.  The slippers are different on 64 1/2
  • The same is true of 64-1/2 turn signal switch (slippers are different)
  • The carpet runs across the floor to the rocker panel, finished with a vinyl covering to the sill plates
  • Non-adjusting passenger seat (Mustangs manufactured before May 8, 1964)

Check the trunk for:
  • Slotted spare tire hold-down
  • Ratchet lug wrench (not in every case)
  • Pigtail tail light sockets