Hello Folks, Hopefully you can help
I am completely rewiring my 1968 Mustang fastback, What complicates matters is that the car is now a 1967 GT350 replica with some aftermarket stuff.
Basically the harnesses in the car are all original as far as I can tell. The initial reason for the removal and replacement was due to the fact the wiring in the car showed some scary signs of deterioration and very poor repairs. The second reason was to install a tach dash harness setup in the car. Upon removal of the headlight harness I saw evidence that proved this was the best course of action, to remove and replace everything.
The car is fitted with aftermarket air which is staying
A 5 speed which is staying
A horrid custom autosound radio setup, which although nearly new doesn't work, surprise surprise which is going and a factory AM/FM will replace
An autometer guage pod setup. Which is going and a factory tach dash is going in its place
Shelby non sequential rear lights. Which are staying
Electronic under the cap ignition which is staying
Okay, so what I am doing is going back to a factory AM/FM and a factory tach dash and leaving everything else.
I spent today removing the headlight harness. This went very well and the new harness from NPD is in place and everything appears factory. I am only in need of a location to attach the ground for the headlights, the old harness was missing this.
I also installed the alternator harness which came out great and everything looks factory
I am working on gauge harness but that will take a bit longer as the Autometer senders need to be swapped for factory ones.
After the headlight harness I started removing the main dash harness. This is taking tons of time as I am teasing out the A/C wiring and verifying what is to go and what is to stay. I don't like to just remove stuff, Even if its going I like to see what it was previously doing.
I did happen to notice at the firewall a connector in the middle of the upper portion of the firewall with a four position plug and I was a bit stumped as to what this was for. Near this connector is the thin triple plug that I assume the gauge feed harness attaches to. After looking at the wiring diagrams online I saw this four position plug must be for an automatic car (which mine originally was as I have the marti report) and for the neutral safety switch (which mine no longer has due to being a five speed) The thing is that on my car there are four wires (non factory) attached to this plug with bullet connectors. So I got to thinking, What connections would there be on a T5 conversion that need to be made? I assume reverse lights and nothing else I could think of.
Can anyone shed any light on what these four wires could be? They come out of the top of the tranmission and run up to this four position square plug in the upper portion of the firewall on the engine side.
Cheers. Peter
I am completely rewiring my 1968 Mustang fastback, What complicates matters is that the car is now a 1967 GT350 replica with some aftermarket stuff.
Basically the harnesses in the car are all original as far as I can tell. The initial reason for the removal and replacement was due to the fact the wiring in the car showed some scary signs of deterioration and very poor repairs. The second reason was to install a tach dash harness setup in the car. Upon removal of the headlight harness I saw evidence that proved this was the best course of action, to remove and replace everything.
The car is fitted with aftermarket air which is staying
A 5 speed which is staying
A horrid custom autosound radio setup, which although nearly new doesn't work, surprise surprise which is going and a factory AM/FM will replace
An autometer guage pod setup. Which is going and a factory tach dash is going in its place
Shelby non sequential rear lights. Which are staying
Electronic under the cap ignition which is staying
Okay, so what I am doing is going back to a factory AM/FM and a factory tach dash and leaving everything else.
I spent today removing the headlight harness. This went very well and the new harness from NPD is in place and everything appears factory. I am only in need of a location to attach the ground for the headlights, the old harness was missing this.
I also installed the alternator harness which came out great and everything looks factory
I am working on gauge harness but that will take a bit longer as the Autometer senders need to be swapped for factory ones.
After the headlight harness I started removing the main dash harness. This is taking tons of time as I am teasing out the A/C wiring and verifying what is to go and what is to stay. I don't like to just remove stuff, Even if its going I like to see what it was previously doing.
I did happen to notice at the firewall a connector in the middle of the upper portion of the firewall with a four position plug and I was a bit stumped as to what this was for. Near this connector is the thin triple plug that I assume the gauge feed harness attaches to. After looking at the wiring diagrams online I saw this four position plug must be for an automatic car (which mine originally was as I have the marti report) and for the neutral safety switch (which mine no longer has due to being a five speed) The thing is that on my car there are four wires (non factory) attached to this plug with bullet connectors. So I got to thinking, What connections would there be on a T5 conversion that need to be made? I assume reverse lights and nothing else I could think of.
Can anyone shed any light on what these four wires could be? They come out of the top of the tranmission and run up to this four position square plug in the upper portion of the firewall on the engine side.
Cheers. Peter