are these the dual horns? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**nitrosport_5** · 01-28-2013, 04:18 PM

just pulled these off of Rusty. were mounted together. with same bolt. i suspect they arent correct. of they arent correct, where should the second one mount? theae were both under the aux batt tray
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**nitrosport_5** · 01-28-2013, 04:20 PM

hit submit too early lol
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71K20chevy · 01-28-2013, 04:36 PM

Yes, those are correct, mine has the same ones.

I can't completely help you with mounting locations, but there should be bolt holes on the driver side of the core support, just like you described.

**nitrosport_5** · 01-28-2013, 04:36 PM

were they mounted one on top of another?
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71K20chevy · 01-28-2013, 04:37 PM

No, mine were mounted separately.

longhorn70gmc · 01-28-2013, 07:43 PM

Good thread,
My truck was spliced together from a prior owner, so Originally mine was mounted on both sides of the 1968 radiator support, but have since replaced it with a correct 1970 support and only had one horn wire, so now mine is mounted on the passenger side closest to the green wire. My truck is a 1970 GMC Longhorn Sierra Grande.
R/
Billy

**nitrosport_5** · 01-28-2013, 07:47 PM

my truck is so hacked together im surprised it even had horns on it. Although they dont seem to work. Is there any identifying markers on the horns that let you know they are for sure the correct ones? I am skeptical since the rest of the truck is so hacked up.

Livrat · 01-28-2013, 07:55 PM

I do not believe those are a dual horn "pair" the optional second horn should spiral the opposite direction, both normally had either an "H" or an "L" on the bell end indicating high or low note. one should mount next to the radiator on the core support and the other next to the headlight

**nitrosport_5** · 01-28-2013, 07:58 PM

thank you for clearing that up livrat. they dont have an h or l so most likely just 2 standard horns.
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**FirstOwner69** · 01-28-2013, 09:09 PM

Here are a couple pics. Installed and not. My high note horn (the one that goes under the headlight) is marked with the "H" visible in the second pic. The low note is not marked with a "L", but I understand some are. My original 69 core support did not have the weldnut mounting provision below the headlight on the front side, I assume, because the high note was not available in 69 (at least early 69). The low note horn is to the left of the radiator. The core support shown is from a 70, 71 or 72. The green wire you have looks to be correct to connect the 2 horns.

Tbruz · 01-28-2013, 10:05 PM

Any interest in selling the harness?
Ive been looking to add dual horns to my Blazer.
Thanks
Tbruz

**nitrosport_5** · 01-30-2013, 12:11 AM

Quote:

Originally Posted by Tbruz

Any interest in selling the harness?
Ive been looking to add dual horns to my Blazer.
Thanks
Tbruz

I am going to hang onto it for the time being. If i end up getting a pair of dual horns with a harness i will look into selling it.

01-28-2013, 04:18 PM	#1
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	are these the dual horns? just pulled these off of Rusty. were mounted together. with same bolt. i suspect they arent correct. of they arent correct, where should the second one mount? theae were both under the aux batt tray Posted via Mobile Device __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project

01-28-2013, 04:20 PM	#2
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	Re: are these the dual horns? hit submit too early lol Posted via Mobile Device Attached Images __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project

01-28-2013, 04:36 PM	#3
71K20chevy Registered User Join Date: Jul 2012 Location: Ft Wayne Indiana Posts: 1,204	Re: are these the dual horns? Yes, those are correct, mine has the same ones. I can't completely help you with mounting locations, but there should be bolt holes on the driver side of the core support, just like you described. __________________ 71 K20 64 GMC mud truck

01-28-2013, 04:36 PM	#4
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	Re: are these the dual horns? were they mounted one on top of another? Posted via Mobile Device __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project

01-28-2013, 04:37 PM	#5
71K20chevy Registered User Join Date: Jul 2012 Location: Ft Wayne Indiana Posts: 1,204	Re: are these the dual horns? No, mine were mounted separately. __________________ 71 K20 64 GMC mud truck

01-28-2013, 07:43 PM	#6
longhorn70gmc Senior Member Join Date: Feb 2001 Location: Ridgecrest. CA, USA Posts: 1,715	Re: are these the dual horns? Good thread, My truck was spliced together from a prior owner, so Originally mine was mounted on both sides of the 1968 radiator support, but have since replaced it with a correct 1970 support and only had one horn wire, so now mine is mounted on the passenger side closest to the green wire. My truck is a 1970 GMC Longhorn Sierra Grande. R/ Billy __________________ Billy 1970 GMC Sierra Grande 402/TH400 (Longhorn)14 years and counting rebuild! 1975 (Build) Chevrolet SWB 4X4 350 SB Lifted 6 inches 1970 Ford F250 Ranger 390 BB 2010 Ford Super Duty F250 XLT W/4 inch lift kit and Pro Comp Tires Hub Cap Freak! *I need another truck like I need another hole in the head!* I'M IN THE MARKET...AS IT WERE!

01-28-2013, 07:47 PM	#7
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	Re: are these the dual horns? my truck is so hacked together im surprised it even had horns on it. Although they dont seem to work. Is there any identifying markers on the horns that let you know they are for sure the correct ones? I am skeptical since the rest of the truck is so hacked up. __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project

01-28-2013, 07:55 PM	#8
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: are these the dual horns? I do not believe those are a dual horn "pair" the optional second horn should spiral the opposite direction, both normally had either an "H" or an "L" on the bell end indicating high or low note. one should mount next to the radiator on the core support and the other next to the headlight

01-28-2013, 07:58 PM	#9
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	Re: are these the dual horns? thank you for clearing that up livrat. they dont have an h or l so most likely just 2 standard horns. Posted via Mobile Device __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project

01-28-2013, 09:09 PM	#10
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,843	Re: are these the dual horns? Here are a couple pics. Installed and not. My high note horn (the one that goes under the headlight) is marked with the "H" visible in the second pic. The low note is not marked with a "L", but I understand some are. My original 69 core support did not have the weldnut mounting provision below the headlight on the front side, I assume, because the high note was not available in 69 (at least early 69). The low note horn is to the left of the radiator. The core support shown is from a 70, 71 or 72. The green wire you have looks to be correct to connect the 2 horns. Attached Images

01-28-2013, 10:05 PM	#11
Tbruz Registered User Join Date: Feb 2010 Location: Windham, NH Posts: 226	Re: are these the dual horns? Any interest in selling the harness? Ive been looking to add dual horns to my Blazer. Thanks Tbruz



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