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Guys, attaching a picture of the mystery wire. It did not come with the replacement ammeter wiring harness. That came as described with only two wrapped wires. When I disassembled the wiring on the alternator, ammeter block and solenoid, I did not take note of where the now mystery wire started or connected. My bad.  As Bob says, it is not relevant since the ammeter takes full power. So that is done and thanks for the reassurance. I still would like to know if anyone can identify the wire. Maybe it got put on in error when there was an alternator replaced?
Charlie D

I am still uncertain of the correct wiring for the ammeter. I have a replacement "harness" which consists of the Shelby Red from ammeter + to the starter solenoid battery terminal and the Shelby Black from ammeter- to the ammeter block in the illustration that JD(thanks) sent. There is a third wire, not included when you purchase the harness. It is a black wire with a resistor built in it. I think it goes from the alternator output post to the ammeter block, but I cannot find it in the schematic I have . If that black wire is supposed to reduce the power going to the ammeter, I don't see how it works if that is the correct circuit connection. Am I OK with my assumption on the black resistor wire? Can someone explain how that circuit works? That's a lot of juice and I sure don't want to have it wrong!
Thanks,
Charlie D

Thanks JD!

Bob, can you repost the link to the wiring diagram? The one in the old post no longer works.
Thanks
Charlie D

Just a quick heads up and thanks to Bob Gaines for his tip to remove the steering wheel. The rat-a-tat-tat worked like a charm, came off with no effort at all and only one shot with the pneumatic hammer. Way to easy!

I ordered the Gear Vendors overdrive, should arrive around the first of the year. Looks like a good winter project along with a rewire. Will post how the overdrive performs when I'm done.

I'm considering putting a Gear Vendors overdrive on my 67 GT500 C6 automatic. The stock rear is a 3:50 and while that is great for stop light races, it keeps my engine screaming at today's highway speeds. I am still using 15" tires with the 70 profile so that is still a stock setup. Travelling 400 miles on open interstate with even the 18 wheelers rolling at 80 puts me truning well into the mid 3000's I'd like to add the extra gear just to make those segments of travel more comfortable. Anyone done this? If so, are you happy with it? Any information welcome. Oh, yes, I will save and store any removed parts.
Charlie D

My speedometer has gotten bouncy at speeds under 40. Seems accurate and steady over 40. I have checked that the cable is well seated in the back, and that seems OK. Not sure that is a symptom of the cable starting to fail or the speedometer itself? So any diagnosis is helpful. Also, if needed, is there a recommended rebuilder or just replace it? Thanks
Charlie D

OK, I 'll find someone to follow! Thanks

Are there instructors available for the novice group track time? If yes, how do you request one, I don't see it when you regester. Thanks
Charlie D

Congratulations guys, the inside honors at Carlisle escaped my first read! Look forward to seeing both of you there. Steve, thanks for the humor, guess I need to name mine Closing Time.
Charlie D

Anyone done the 22 gallon fuel tank conversion on their GT500? Considering it before launching off to Indianapolis. Counting on a 3 gallon reserve, I fill up at 130 miles with the stock 16 gallon tank, 22 gallon will get me 190. Any thoughts, done it?
Charlie D

Steve and Corey, I'll be there also. I signed up for the Team Shelby event at Mt Pocono a couple days before Carlisle. Run together from Mt Pocono to Carlisle, parade into Carlisle. Anyone else?
Charlie D

Thanks Rich. I have all the documents from Shelby to the dealer and I believe I communicated with you a couple years ago so you could have the information for your project. Just as well the photo of the fender ID did not upload! I'll take your suggestion and leave the Marti report behind, can always find a use for the $$ elsewhere.
Charlie D

Thanks for the advice. I did locate the serial # stamp on the right front inner fender, but one digit is pretty difficult to identify. Attaching a photo.  I read it as 67410F5A0 ?5? 131. That 10th digit did not strike cleanly. Look like a 5 to you?
Charlie D