The very basic rule is that every GT must be either a "K" code car or an "A" code car built after mid February 1965, no exceptions. The GT must have a dual exhaust system with exhaust trumpeters that exit through a special rear valance with 2 exhaust openings. Because of these exhaust openings, the rear bumper guards were omitted. The bracket bolt holes were sealed with small rubber plugs. To accommodate the dual exhaust, special exhaust hangar reinforcements were used on the rear hangars behind the rear seats.
The GT's exterior had a small GT badge on each front fender and GT stripes that ran from the rear of the front wheel well to the front of the rear wheel opening. They did not receive the standard M U S T A N G or M U S T A N G 2 + 2 emblems so there should not be any holes drilled and patched from these. Rocker molding were deleted and not an option.
The front of the car received a set of fog lights mounted on horizontal bars. The will either be one hole or two holes punched in the front of the radiator support for the wires to run through. There will be a fog light circuit breaker (mounted on brake pedal bracket) and a fog light switch that is mounted under the dash on the inside of the car. There are several locations where the switch was mounted so that is not a determining factor. The switch had one male and 2 female connectors that connected into the main wiring harness. One thing is that whenever the fog lights are turned on, the taillights also come on. After market switches do not have this option.
There will be no little "C" side scoop ornamentation on a GT.
Mechanically speaking, the GT was built with a 16:1 quick ration steering gearbox. They had a stiffer suspension and heavier (thicker) front sway bar. Gt's received heavy duty shock absorbers. Along with the beefed up suspension, GT's were equipped with a larger single master cylinder, a proportioning valve, disc brakes and a brake pedal that was labeled "Disc Brake".
The interior received a 5 dial analog instrument cluster and a flat glove box door in camera case black.This one is nice!! CARL