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05-20-2018, 11:55 PM | #1 |
Registered User
Join Date: Mar 2018
Location: Kent Washington
Posts: 43
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High Low Horn question
I have a pair of high low horns laying around. My truck is a 68 so it doesn’t have the option for both horns. My question is what do I need to do wiring wise to use both of these. My current harness only has the 1 green wire. Do I need to splice in a jumper wire to the other horn off this green wire? If not can I use just 1 of these horns and does it matter which one?
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05-21-2018, 12:16 AM | #2 |
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Join Date: Dec 2012
Location: Vancouver, Washington
Posts: 1,644
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Re: High Low Horn question
I've thought of doing this on my '68 as well. I don't see why splicing a jumper into the green wire wouldn't work. Not sure what the bracket would be to mount both, though - the one thing I would have to figure out..
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1968 Chevrolet C/10 LWB - 327, TH350 - 4/5 Drop |
05-21-2018, 12:23 AM | #3 |
Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 10,752
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Re: High Low Horn question
Here is a photo of my 67 dual horn set up. It uses a common factory jumper wire and plug to hook the two together. If you look close on the bottom horn you will see it. I didn't install them but I have seen the jumper on other GM vehicles.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
05-21-2018, 09:38 AM | #4 |
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Join Date: Mar 2018
Location: Kent Washington
Posts: 43
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Re: High Low Horn question
Nice I’ll give that a try. Also noticing my horn brackets are shapped a little different. Instead of having a L at the end mine are just straight. Either way I think I can make it work. Thanks for the photos.
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05-21-2018, 02:11 PM | #5 |
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Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,835
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Re: High Low Horn question
Here's a picture of a factory jumper wire itself.
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05-21-2018, 03:46 PM | #6 |
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Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,234
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Re: High Low Horn question
I’ve noticed some core supports are pre drilled for the dual horns others not, I located a set of duals with jumper but my gmc core is not drilled for the second horn.
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71 C-20 07 Magnum RT AWD |
05-22-2018, 12:28 AM | #7 | |
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Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,835
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Re: High Low Horn question
Quote:
Here's picture of my current core support from a '71 or '72 showing the mounting positions for the 2 horns. Also note that my '69 still had the washer bottle on the core support. Most later '69s I've seen had them relocated to the fender. |
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05-23-2018, 12:12 AM | #8 | |
Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,019
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Re: High Low Horn question
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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05-23-2018, 03:31 PM | #9 |
Registered User
Join Date: Dec 2012
Location: Vancouver, Washington
Posts: 1,644
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Re: High Low Horn question
I found the dual horn wiring harness on the Lectric Limited website for $20
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1968 Chevrolet C/10 LWB - 327, TH350 - 4/5 Drop |
05-23-2018, 04:12 PM | #10 |
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Join Date: Jul 2008
Location: Eastern Oregon
Posts: 2,234
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Re: High Low Horn question
My GMC is a 71, no provision for second horn. The dual horns I located where from a 69 C20, even listed on spid.
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71 C-20 07 Magnum RT AWD |
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