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MUSTS FOG LIGHTS INTERIOR
ENGINE SUSPENSION AND BRAKES EXHAUST
STRIPES, BADGES and OTHER DETAILS DELETED  

 

M U S T S
 

Build Date
Must be after April 15th 1965

 
 

Required A or K code engine with dual exhaust

 

 

F O G  L I G H T S
  Fog Lights
Factory GT's had a pair of 4-inch fog lamps.  Note they are wired so that when you turn the fog lights on, the rear tail lamps also illuminate.
  Fog Light Circuit
This factory diagram for the GT fog circuit shows the breaker bolted to the wiper bracket.
  Fog Light Switch
Early Placement
  Fog Light Switch
D Shaped Punched Hole
Later Placement
  Fog Light Wiring
When the switch is flipped on, both the fog lights and the rear tail lights light up.  Non-factory GT’s with the fog lights added typically are not wired for the tail lights to illuminate when the fog lights are turned on. 
 
  Fog Light Breaker
The fog light breaker has 2 threaded ends for wires to attach to. It's maybe 1.5"x.25"x.25" and has a bracket made on it to attach the breaker to a mounting point.  It was normally attached to the wiper motor mount or the pedal support.
  Fog Light Wire Hole in Radiator Support
Punched with a Lip (not Drilled)

 

INTERIOR
  5 Bezel Dash Cluster
(Fuel, Temperature, Speedometer, Oil pressure, Amperes)
  Pressed Lip for the 5 Bezel Dash Cluster
Pressed Lip in the Dash (not cut)
  Gauge Wiring
A Mustang could get a '66 under dash wiring harness installed with the 5 gauge instrument cluster but the '66s are different in that the ammeter have two wires attached to the gauge similar to how the other gauges are wired. The '65 ammeter has an inductive loop like the one this Mustang has.
  Glove Box Door
The glove box door on both 1965 and 1966 GT’s is flat and carries the mustache at this upper edges.
GT's with Pony Interior get the Wood Grain Finish

 

ENGINE
  Carburetor - 4 Barrel
Autolite 4100 (pictured with a manual choke which is for a K code)
  Intake Manifold
Iron Standard Cart 4V

 

SUSPENSION and BRAKES
  Steering Gear Box  (tag is the only way to tell)
HCC-AX is the special manual steering box standard on the GT Mustangs and cars with heavy duty suspension.
Special Box ratio is 16:1
add the stock Pitman and idler arms and the ratio becomes 22:1
add the Shelby American Pitman and idler arms and the ratio becomes 19:1
  Heavy Duty Front Springs
approx. 8.25 coils
  Heavy Duty Rear Leaf Springs  
  Shocks  
  Sway Bar
13/16"
  Disc Brakes
Fade-Resisting Front Disc Brakes
  Disc Brake Pedal Pad
  Disc Brake Proportioning Valve
Inspect how the proportioning valve is attached.

 

Rear Brake Hose and Bracket
The rear brake hose is located on the upper portion of the floor pan, about halfway between the frame rail and the driveshaft tunnel, instead of being located near the upper portion of the driveshaft tunnel.

  Disc Brake Master Cylinder
The Master is round with a clip on the lid.  It is at least twice the size of a drum brake master cylinder.

 

EXHAUST
 

Trumpet Exhaust
Chrome tail-pipe extensions

 

Exhaust Brackets
Dual straight-through exhaust system with re-enforced brackets under the back seat.

 

Exhaust Brackets
Re-enforced bracket view from underneath the car.

 

Brace
Metal brace, inside the rear frame.  This brace was there to keep the box frame from collapsing when you bolted on the dual exhaust systems.  All true factory GT's will have this brace.  You can feel it by placing your finger in the frame hole and pointing aft - you will feel in inside.

 

STRIPES BADGES and OTHER DETAILS
  Hood Molding
Bright-metal hood accent molding in 1965. All 1966 Mustangs came with this Molding
 

Badges
"GT" fender badges placed just aft of each front wheel cutout.

 

Badges
MUSTANG chrome letters inside of a triple stripe on front fenders

 

Stripes
And running front to rear along the lower body is the triple stripe that Ford's GT racing car carries in European competition!

 

1965 GT’s came with a standard gas cap while all 1966 GT’s came with a gas cap with the letters “GT” on them. 

 

DELETED
  Rocker Panels
A GT car will not have any, making room for the stripes
  Bumper Guards
Rear bumper guards were deleted from the vehicle due to trumpeted exhaust
  Emblems
Mustang emblem and running horse are deleted from front fenders
  Quarter Panel Ornaments
Deleted on coupes and convertibles. Fastbacks were not offered with quarter panel ornaments.

 

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