Speed warning dash - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**KevsClassics** · 07-14-2009, 08:19 PM

I am installing instrument cluster with tach/vac and speed warning on customers truck. problem is he does not have wire harness for buzzer. does anyone have wire diagram for buzzer? Also pic of correct spot for knob?

my67chevytruck · 07-14-2009, 08:44 PM

kevin,
here are a couple of links that may help you out.

http://67-72chevytrucks.com/vboard/s...=speed+warning

http://67-72chevytrucks.com/vboard/s...=speed+warning

good luck

Heath

Shyguy · 07-14-2009, 08:47 PM

My GMC dump truck has a speed warning dash, but it has a 2 piece speedometer cable with a sensor in between them.

I don't think a speed warning/ vacuum dash came in the smaller trucks, but I could be wrong.

Danny

71 super · 07-14-2009, 08:57 PM

Kevin in the top corner near headlight hole in dash is a dimple/ location dot for the speed warning knob cable. Drill a 3/8 hole and the cable will slide through this. There is a reproduction wiring harness available for $20 or less that works as original. Radio shack sell as buzzer that will work as well - look in the "buzzer" section you ma have to adapt a little (2 spade terminals on the buzzer) but buzzer has holes to mount as original. Hope this helps -Harold- If you need to see location hole please let me know and I can email you a picture.

69GMCLonghorn · 07-14-2009, 09:06 PM

Ok, so for a speed warning novice, how does this thing work? And at what speed does it become a wife... I mean, tell you you're going too fast?

tcb-1 · 07-14-2009, 09:47 PM

the speed warning was more of a speed alert, a primitive cruise control so to speak.

there is a secondary needle that is located behind the speedometer needle that can be adjusted by a knob located to the upper left of the speedometer, this is the speed warning needle. there is a very small contact attached speed warning needle. when the speedometer needle touches the s.w. contact, it creates a circuit that activates a buzzer that is attached to the firewall.

interesting and rare device.

**KevsClassics** · 07-14-2009, 09:57 PM

Quote:

Originally Posted by my67chevytruck

kevin,
here are a couple of links that may help you out.

http://67-72chevytrucks.com/vboard/s...=speed+warning

http://67-72chevytrucks.com/vboard/s...=speed+warning

good luck

Heath

Yes this helps alot. Thank you, Kevin

Quote:

Originally Posted by 71 super

Kevin in the top corner near headlight hole in dash is a dimple/ location dot for the speed warning knob cable. Drill a 3/8 hole and the cable will slide through this. There is a reproduction wiring harness available for $20 or less that works as original. Radio shack sell as buzzer that will work as well - look in the "buzzer" section you ma have to adapt a little (2 spade terminals on the buzzer) but buzzer has holes to mount as original. Hope this helps -Harold- If you need to see location hole please let me know and I can email you a picture.

Yes this also helps me. Thank you, Kevin

69GMCLonghorn · 07-14-2009, 10:17 PM

Quote:

Originally Posted by tcb-1

the speed warning was more of a speed alert, a primitive cruise control so to speak.

there is a secondary needle that is located behind the speedometer needle that can be adjusted by a knob located to the upper left of the speedometer, this is the speed warning needle. there is a very small contact attached speed warning needle. when the speedometer needle touches the s.w. contact, it creates a circuit that activates a buzzer that is attached to the firewall.

interesting and rare device.

Thanks for the info. I'll give you that it's interesting, but it sounds like the LAST thing I would ever want on a vehicle! Unless of course you set it at like 100 MPH.

tcb-1 · 07-14-2009, 10:24 PM

yep, you can set them between 35 and 100 mph.

nicks05z71 · 07-15-2009, 10:35 AM

Pic...

I have a vac gauge in the mail to put in also. Dont know if im going to put it a tach yet or not.

71 super · 07-15-2009, 11:57 AM

Nick just from what I see it looks lik you have a pretty cool truck! Speed alert and overdrive. Is the overdrive still operational? There are not many of the overdrives still around, so we need more pictures

nicks05z71 · 07-15-2009, 02:24 PM

The overdrive didnt work when I bought it, the PO didnt know anything about it. went to the chevy dealer in town and was told it was never available from chevy and it was a aftermarket thing. After a few hours with a test light and a trip to the parts store ( they knew nothing either ) I found a 15 dollar solenoid that looked right and should work. took her down the road in OD. works great!

and to keep this post about the thread....... does adding a speed warning dash to a tach dash means you have to cut the tins?

71 super · 07-15-2009, 03:07 PM

You can buy a new inner tach tin from GMC Pauls for around $50, but you will have to cut the outer tin for the tach to fit through or drill a tach back tin for the speed alert cable to go through and the ground to connect to.

**GSFMECH** · 07-15-2009, 08:12 PM

Does anyone have a picture of where the buzzer mounts? I have a speedminder but am not sure of the correct buzzer mounting location. I got my buzzer at a O'Riellys parts store and also had to use the spade terminals. The original harness would not mate up to it.

nicks05z71 · 07-15-2009, 11:26 PM

did some searching in the links above....

[/

**GSFMECH** · 07-16-2009, 11:49 AM

Thanks for the pic, that is just what I was looking for.

07-14-2009, 08:19 PM	#1
KevsClassics TILT COLUMN GURU Join Date: Dec 2006 Location: FRESNO CA Posts: 4,276	Speed warning dash I am installing instrument cluster with tach/vac and speed warning on customers truck. problem is he does not have wire harness for buzzer. does anyone have wire diagram for buzzer? Also pic of correct spot for knob? __________________ Instagram kevs_classics64 64 Impala SS Conv 72 Blazer 2wd 75 Jimmy 2wd 63 Belair wagon 02 Silverado ext cab. DD RIP EL JAY

07-14-2009, 08:44 PM	#2
my67chevytruck Under Construction Join Date: Oct 2007 Location: Midlothian,TX (DFW) Posts: 4,555	Re: Speed warning dash kevin, here are a couple of links that may help you out. http://67-72chevytrucks.com/vboard/s...=speed+warning http://67-72chevytrucks.com/vboard/s...=speed+warning good luck Heath __________________ Heath subscribe to the board here: http://67-72chevytrucks.com/vboard/payments.php http://67-72chevytrucks.com/vboard/s...d.php?t=157669 FAQ how to's 1956 Chevy Apache 1967 C10 SWB FleetSide (under construction) 1969 K10 SWB FleetSide (Future Build) 1972 C10 SWB Stepside (Future Build) 56 chevy truck : http://www.cardomain.com/ride/2955823/1 67 truck build: http://www.67-72chevytrucks.com/vboard/showthread.php?t=281357/1 69 k10: http://67-72chevytrucks.com/vboard/s...d.php?t=389470 Last edited by my67chevytruck; 07-14-2009 at 08:45 PM.

07-14-2009, 08:47 PM	#3
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: Speed warning dash My GMC dump truck has a speed warning dash, but it has a 2 piece speedometer cable with a sensor in between them. I don't think a speed warning/ vacuum dash came in the smaller trucks, but I could be wrong. Danny __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.

07-14-2009, 08:57 PM	#4
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,079	Re: Speed warning dash Kevin in the top corner near headlight hole in dash is a dimple/ location dot for the speed warning knob cable. Drill a 3/8 hole and the cable will slide through this. There is a reproduction wiring harness available for $20 or less that works as original. Radio shack sell as buzzer that will work as well - look in the "buzzer" section you ma have to adapt a little (2 spade terminals on the buzzer) but buzzer has holes to mount as original. Hope this helps -Harold- If you need to see location hole please let me know and I can email you a picture. __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

07-14-2009, 09:06 PM	#5
69GMCLonghorn Registered User Join Date: Dec 2006 Location: Porter Ranch, CA Posts: 978	Re: Speed warning dash Ok, so for a speed warning novice, how does this thing work? And at what speed does it become a wife... I mean, tell you you're going too fast?

07-14-2009, 09:47 PM	#6
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Speed warning dash the speed warning was more of a speed alert, a primitive cruise control so to speak. there is a secondary needle that is located behind the speedometer needle that can be adjusted by a knob located to the upper left of the speedometer, this is the speed warning needle. there is a very small contact attached speed warning needle. when the speedometer needle touches the s.w. contact, it creates a circuit that activates a buzzer that is attached to the firewall. interesting and rare device. __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson

07-14-2009, 10:24 PM	#9
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Speed warning dash yep, you can set them between 35 and 100 mph. __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson

07-15-2009, 10:35 AM	#10
nicks05z71 Registered User Join Date: Sep 2008 Location: Willard,Ohio Posts: 87	Re: Speed warning dash Pic... I have a vac gauge in the mail to put in also. Dont know if im going to put it a tach yet or not. Last edited by nicks05z71; 07-15-2009 at 10:36 AM.

07-15-2009, 11:57 AM	#11
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,079	Re: Speed warning dash Nick just from what I see it looks lik you have a pretty cool truck! Speed alert and overdrive. Is the overdrive still operational? There are not many of the overdrives still around, so we need more pictures __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

07-15-2009, 02:24 PM	#12
nicks05z71 Registered User Join Date: Sep 2008 Location: Willard,Ohio Posts: 87	Re: Speed warning dash The overdrive didnt work when I bought it, the PO didnt know anything about it. went to the chevy dealer in town and was told it was never available from chevy and it was a aftermarket thing. After a few hours with a test light and a trip to the parts store ( they knew nothing either ) I found a 15 dollar solenoid that looked right and should work. took her down the road in OD. works great! and to keep this post about the thread....... does adding a speed warning dash to a tach dash means you have to cut the tins?

07-15-2009, 03:07 PM	#13
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,079	Re: Speed warning dash You can buy a new inner tach tin from GMC Pauls for around $50, but you will have to cut the outer tin for the tach to fit through or drill a tach back tin for the speed alert cable to go through and the ground to connect to. __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

07-15-2009, 08:12 PM	#14
GSFMECH On the road Join Date: Jan 2004 Location: NATCHITOCHES LOUISIANA Posts: 818	Re: Speed warning dash Does anyone have a picture of where the buzzer mounts? I have a speedminder but am not sure of the correct buzzer mounting location. I got my buzzer at a O'Riellys parts store and also had to use the spade terminals. The original harness would not mate up to it. __________________ Mike Castro- 72 SWB. Ochre and White. 496/400 turbo, GV OD ,Dakota Digital dash , tilt, Vintage Air, PS, hydro boost, factory buckets, console, QA-1 Coil over suspension, 20/20"Billet Specialties Magnetos 72 SWB. Med blue. 454/400 turbo, tach, tilt, Stock AC, PS,PDB, factory buckets, console, ECE 4/6 drop w/ 2" blocks and C-notch, 20/20"Coys- Crashed and destroyed by drunk driver Sept 2019. New 72 build in the works. My new build thread "Castro" https://67-72chevytrucks.com/vboard/...d.php?t=820934 My old build thread, the blue truck http://67-72chevytrucks.com/vboard/s...d.php?t=271489 www.louisianaclassictruckclub.com Last edited by GSFMECH; 07-15-2009 at 08:12 PM.

07-15-2009, 11:26 PM	#15
nicks05z71 Registered User Join Date: Sep 2008 Location: Willard,Ohio Posts: 87	Re: Speed warning dash did some searching in the links above.... [/

07-16-2009, 11:49 AM	#16
GSFMECH On the road Join Date: Jan 2004 Location: NATCHITOCHES LOUISIANA Posts: 818	Re: Speed warning dash Thanks for the pic, that is just what I was looking for. __________________ Mike Castro- 72 SWB. Ochre and White. 496/400 turbo, GV OD ,Dakota Digital dash , tilt, Vintage Air, PS, hydro boost, factory buckets, console, QA-1 Coil over suspension, 20/20"Billet Specialties Magnetos 72 SWB. Med blue. 454/400 turbo, tach, tilt, Stock AC, PS,PDB, factory buckets, console, ECE 4/6 drop w/ 2" blocks and C-notch, 20/20"Coys- Crashed and destroyed by drunk driver Sept 2019. New 72 build in the works. My new build thread "Castro" https://67-72chevytrucks.com/vboard/...d.php?t=820934 My old build thread, the blue truck http://67-72chevytrucks.com/vboard/s...d.php?t=271489 www.louisianaclassictruckclub.com



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