My first question is:

I have been told that the hole for the master cylinder in the firewall is actually there behind the plastic. It is just got a small cover with a couple of tack qelds holding it on. Anyone know for sure?

WIll my pedals come with the pigtails for the switches? I know i use the brake a cruise switches from my A4 brake pedal but what about the clutch start swtich (that goes to the black and Yellow wires) and the clutch cruise switch. If they don't come with the pigtails can i buy them from GM?

Can I buy a wirring harness for the pedal area down there that will plug into my A4 harness? Or did they make entire different interior wirring harnesses for A4 and M6 cars?

When i take my auto tranny out will there be a lot of unused wirring down in the tranny tunel? I know that the 4l60 has a lot of sensor in it that the M6 certainly won't have. Is there a way i can unplug or get rid of the left over plugs and wirring without cutting the harness?

I want to do the least amount of rigging possible and make it the most like a factor M6 car that i can.

I bought a complete 96 M6 Z28 yesterday so i have all the parts needed for the swap.

Thanks
Shawn

 

If you bought a complete car, then you are set. You have everything you need and won't need to buy anything from a dealer. I had to drill the hole in the firewall for my master cylinder, but you can't tell anything had to be drilled and it looks like a factory job. As far as the wiring goes I thought it was pretty easy. The pigtaile for the auto trans is still on my car just hung up and out of the way. Doubt I will ever need it again, but just in case. BTW it took me about two days to do the swap by myself.

 

You can keep your stock A4 harness. A couple splices here and there with radio-shack wire, and you're set to go.

You will have to drill the holes for the master cylinder. The firewall is solid, but the outline of the master cylinder is still there in the plastic in front of the firewall. Use that as a guide for placing your holes.

The only "pigtail" you'll need for the pedals is the one that plugs into the black clutch position sensor switch. Splice that baby into the thick yellow and brown wires that originally went into your auto tranny shifter.

There's also a Y connector for the clutch and brake cruise deactivation switches, but that's not absolutely necessary... just remember not to hit the clutch while cruise is on.

 

well how many extra plugs and wirring is left under there when i get get the M6 in? I don't want a lot of extra wirring just hanging in my tranny tunnel. I can handle 1 or 2 though.

I am going to have to run the wires for my reverse lights from inside the car down into the tranny tunnel and connect to the reverse switch on the side of the trans right.

I am going to go ahead and wire up the clutch cruise switch too since i have all the wirring anyway.

thanks
Shawn