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Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

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Unread 10-12-2013   #1 (permalink)
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Default 64.5 steering wheel replacement, horn does not work

I am replacing an aftermarket steering wheel on my 64.5 Mustang. I have the wheel and the horn ring, no other parts. When I install the parts, the horn does not work. Are there any parts other than the ones above that I will need? Is there anything that attaches to the wheel for the horn?
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Unread 10-12-2013   #2 (permalink)
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Hello. The answers to a couple of quick questions should help get this sorted out. First, did the horns work with the aftermarket wheel? Do you know who made this aftermarket wheel? How many of the spring loaded copper contacts are sticking out of the turn signal switch? A 64 1/2 should have one, a 65/66 will have two. Does your car still have a horn relay mounted on the radiator core support near the voltage regulator?
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Unread 10-12-2013   #3 (permalink)
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Quote:
Originally Posted by Veronica View Post
How many of the spring loaded copper contacts are sticking out of the turn signal switch? A 64 1/2 should have one, a 65/66 will have two.
The 64 wheel has two, in a way. One is in the turn signal switch, the other is in the wheel itself, to transfer the connection from the slip ring to the horn ring. If either is missing the horn will not work.
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Unread 10-12-2013   #4 (permalink)
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Quote:
Originally Posted by Veronica View Post
Hello. The answers to a couple of quick questions should help get this sorted out. First, did the horns work with the aftermarket wheel? Do you know who made this aftermarket wheel? How many of the spring loaded copper contacts are sticking out of the turn signal switch? A 64 1/2 should have one, a 65/66 will have two. Does your car still have a horn relay mounted on the radiator core support near the voltage regulator?
Answers to questions:

1. Yes the horns worked with the old wheel
2. The old wheel was a Grant woodgrain one. The wheel itself worked, the horn button never stayed on.
3. I have one of the copper contacts between the wheel and the turn signal switch. I see in the next response that I should have one also in the wheel. I suspected as much. I do not at present have one for the wheel itself.
4. The horn relay is beside the radiator core.

I assume that I will need the second copper contact. Is there anything else that i will need?
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Unread 10-12-2013   #5 (permalink)
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Hi again. No, you do not need the second contact. Your horns are wired up differently from a 65/66. I typed out a more complete explanation of how your horns are supposed to work here.
The Care and Feeding of Ponies: Horn wiring for 64 1/2 Ford Mustang

The 64 1/2 steering wheels are are different from the 65/66 steering wheels. It could be that your new steering wheel is a 65, which won't work with the 64 1/2 horns. Assuming that you have the steering wheel off right now, try grounding the horn contact in the turn signal switch out on the steering column. That should make the horns blow.
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Unread 10-13-2013   #6 (permalink)
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Quote:
Originally Posted by Veronica View Post
Hi again. No, you do not need the second contact. Your horns are wired up differently from a 65/66. I typed out a more complete explanation of how your horns are supposed to work here.
Veronica, you are very, very wrong. I will bet you here and now $1 that the stock 64 steering wheel requires a contact, the same contact found in the turn signal switch. Please stop thinking I am confused and believe him to have a 65-66 car. He doesn't, and I am not. You really need to look closer at the 64 horn setup.

The OP himself said the one in the wheel is missing. Without it, in the words of Monte Python, "you could put four million volts through it" and the horn still wouldn't work.

He can get the missing contact here-

Link-
http://www.mustangbarnstore.com/SPD/...6060531952.jsp

Quote:
2. The old wheel was a Grant woodgrain one. The wheel itself worked, the horn button never stayed on.
This is actually normal for a Grant. It is considered bad manners to say the word "pothole" while riding in a car with a Grant wheel, because the horn button will immediately fall off.
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Unread 10-13-2013   #7 (permalink)
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This is actually normal for a Grant. It is considered bad manners to say the word "pothole" while riding in a car with a Grant wheel, because the horn button will immediately fall off.[/quote]

Thanks!

I found someone with a 64.5 Mustang and just looked at his wheel. You are correct. I do need the second contact. I also will need the spring that goes between the wheel and horn ring.

I can understand about the "pothole" thing! I'm also glad in a way that I'm not the only one with this trouble.
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Unread 10-13-2013   #8 (permalink)
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Quote:
Originally Posted by wolfden View Post
I found someone with a 64.5 Mustang and just looked at his wheel. You are correct. I do need the second contact. I also will need the spring that goes between the wheel and horn ring.
Here-
http://www.mustangbarnstore.com/SPD/...5792096496.jsp
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