High Note Horn Mounting Location ?

[54blackhornet]

Found a dual horn set up at the local wrecking yard with jumper wire. When I went to mount the high note horn I noticed my core support was not drilled to accept the second horn ? The indentation is there to locate it, is this normal ? Thanks for any help.....

[FirstOwner69]

Originally Posted by 54blackhornet

Found a dual horn set up at the local wrecking yard with jumper wire. When I went to mount the high note horn I noticed my core support was not drilled to accept the second horn ? The indentation is there to locate it, is this normal ? Thanks for any help.....

I think that depends on the year. My 69 was apparently made before the high horn was offered and did not have a mounting provision on the core support. I don't think it even had a dimple. The 71 core support I replaced it with has a hole with a weld nut.

[FirstOwner69]

Here's where it goes.

[flaa1a]

Originally Posted by FirstOwner69

Here's where it goes.

Yeah....in my search for a working H pitch horn I discovered that the earlier models did not even have dual tones.

[cdowns]

all the 71-72
's I had the dual horns all mounted with a single bolt thru the mount on the core support// that picture posted is not roght for a factory mount

[FirstOwner69]

Originally Posted by cdowns

all the 71-72
's I had the dual horns all mounted with a single bolt thru the mount on the core support// that picture posted is not roght for a factory mount

Hmm... that's interesting. I've looked at dozens of these trucks with dual horns and they all had the high note horn located in that location under the left headlight as shown in the picture I posted. Do you, or does anyone else, have a picture showing one in the location you are referring to? The low note horn is the one on the core support adjacent to the radiator which I am positive is its correct location.

[Lee H]

Originally Posted by FirstOwner69

Here's where it goes.

Agree with location but I don't know which horn goes where.

[flaa1a]

That is where they are located on my 72 cheyenne super.

[jabborabbo]

So...the $10,000 question is:

has anyone mounted a low/high note horn pair on an earlier truck that doesn't have the factory mounting holes?

[FirstOwner69]

Originally Posted by Lee H

Agree with location but I don't know which horn goes where.

The high note horn goes under the headlight. The low note goes on the vertical "support" next to the radiator. This is the same location as the mounting point for low note only trucks.

Originally Posted by jabborabbo

So...the $10,000 question is:

has anyone mounted a low/high note horn pair on an earlier truck that doesn't have the factory mounting holes?

I mounted a high horn on my original core support in the late 70s by drilling a hole in about the same location as shown in the picture I posted. I based that on the location on the donor vehicle. The tough part is finding a high horn that works.

[leddzepp]

Originally Posted by jabborabbo

So...the $10,000 question is:

has anyone mounted a low/high note horn pair on an earlier truck that doesn't have the factory mounting holes?

Easy, just bolt them to the same location, one turned 90 degrees from the other and stack them.

[Andy4639]

My horns that I took off my 71 both have the same mount and both where under the light! Unless you are showing the truck in a 100% state why even worry about it. Just mount them and be happy!

[54blackhornet]

I removed the dual set up from a 69 C-20, they where mounted side by side, not using only one bolt. My 71 GMC has the locater notch for the second horn but no hole ? Also the jumper wire is way to short to connect that horn under the light ?

[FirstOwner69]

The picture in post 1 of this thread is the best I can find of an original jumper wire.
http://67-72chevytrucks.com/vboard/s...d.php?t=497821

[gmc 2500 4x4]

good info