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01-16-2013, 03:26 PM
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#1 |
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Registered User
Join Date: Nov 2010
Location: California
Posts: 48
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Blow my horn
This is what I have:
Hella Twin Tone Horn without instructions. Was hoping to replace the horn on my 71 Chev truck but not sure how to add that little do-hickey in the middle? My old setup doesn't have one. Is it a relay of some kind? Thanks for any help. |
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01-16-2013, 07:57 PM
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#2 |
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Registered User
Join Date: Dec 2012
Location: Upstate , New York
Posts: 647
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Re: Blow my horn
Yeah it a basic relay
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01-16-2013, 08:02 PM
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#3 |
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Registered User
Join Date: Nov 2010
Location: California
Posts: 48
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Re: Blow my horn
I'm guessing the horns connects to the relay (which are connected to the positive side of my battery) and the relay also connects to a ground?
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01-16-2013, 08:08 PM
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#4 |
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Registered User
Join Date: Jan 2013
Location: Mickleton, NJ
Posts: 1,776
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Re: Blow my horn
http://www.offroaders.com/info/tech-...ive-wiring.htm
take a look here. They are showing lights, but your horns would go there in the diagram. the wire from the switch would be your stock horn wire.
__________________
Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881 |
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01-16-2013, 08:22 PM
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#5 |
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Proprietor of Dale's Corner
 
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,009
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Re: Blow my horn
Just thinkin here, If he uses the trucks stock wiring why would he need the relay. The truck has a horn relay already.
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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01-16-2013, 08:45 PM
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#6 | |
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Registered User
Join Date: Jan 2013
Location: Mickleton, NJ
Posts: 1,776
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Re: Blow my horn
Quote:
__________________
Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881 |
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01-16-2013, 09:03 PM
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#7 | |
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Registered User
Join Date: Nov 2010
Location: California
Posts: 48
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Re: Blow my horn
Quote:
This new horns have two terminals each coming off of them where as my old horns have only one each. Didn't think it would matter but I guess it does. And thanks for the help/diagram guys. Now it's time for me to get busy... |
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01-16-2013, 09:06 PM
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#8 | |
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The Older Generation
  
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,416
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Re: Blow my horn
Quote:
As Ol Blue K20 said, your truck does have one. It is under the dash, on the left side of the steering column. I think the wires to the plug are Red, Green, & Black. Red is power, Black is ground, and Green goes to the horn. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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01-16-2013, 09:07 PM
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#9 |
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Proprietor of Dale's Corner
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,009
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Re: Blow my horn
Your stock relay is under the dash, the stock horns grounded thru the mounting bracket.
Most likely the Hellas Need to be grounded thus two terminals
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man Last edited by Ol Blue K20; 01-16-2013 at 09:16 PM. |
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01-16-2013, 09:14 PM
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#10 |
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Registered User
Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
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Re: Blow my horn
one wire on the horn will need to go to ground one will go to 12 volt source, i think they can be mounted on plastic cars we have today that is why the extra ground on each horn plus then you would know its grounded good...
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01-16-2013, 09:28 PM
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#11 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Blow my horn
I would say one terminal is Hot and the other ground. take the singal wire that's in the truck and hook it to one of them and put a jumper on it and see.
No need for the relay in the picture it's already wired into the truck harness.  
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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01-16-2013, 10:40 PM
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#12 |
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Registered User
Join Date: Nov 2010
Location: California
Posts: 48
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Re: Blow my horn
I'll give it a try this weekend.
Thanks again everyone. |
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01-22-2013, 11:47 PM
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#13 |
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Registered User
Join Date: Nov 2010
Location: California
Posts: 48
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Re: Blow my horn
Honk Honk...the new horn is working fine...
 Thanks again everyone. |
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01-23-2013, 02:19 PM
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#14 | |
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Proprietor of Dale's Corner
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,009
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Re: Blow my horn
Quote:
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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