The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-19-2024, 05:38 PM   #1
Rick Bollinger
Registered User
 
Join Date: Mar 2018
Location: Colchester IL
Posts: 293
Is this a speed warning?

Was wondering what this was? It looks different from the other speed warning speedometers I have seen. Possibly off of a larger truck? It was on a 3/4 ton GMC.
Attached Images
   
Rick Bollinger is offline   Reply With Quote
Old 09-19-2024, 06:25 PM   #2
CG
BlahBlahBlah
 
Join Date: Feb 2002
Location: Wa.
Posts: 19,914
Re: Is this a speed warning?

Not speed warning. Looks like someone put in a vacuum gauge.
__________________
… … … … … … … … ... … … … … … … … … … … …
CG is offline   Reply With Quote
Old 09-19-2024, 06:46 PM   #3
Rick Bollinger
Registered User
 
Join Date: Mar 2018
Location: Colchester IL
Posts: 293
Re: Is this a speed warning?

Thats kind of what I thought but the gauge fits into the bezel with what looks like a twist on lens that was missing. The bezel looks to be stock but is different than any other that I have seen. The speedometer has that smaller speedometer within itself which I have never seen before either.
Rick Bollinger is offline   Reply With Quote
Old 09-19-2024, 07:07 PM   #4
Getter-Done
Senior Member
 
Getter-Done's Avatar
 
Join Date: Dec 2009
Location: TN.
Posts: 8,221
Re: Is this a speed warning?

Here's a picture in the link below of the factory setup.

Link: https://67-72chevytrucks.com/vboard/...=speed+warning
__________________
________________________________________________________________________________________
____________________________________________
84 Chevy K-20
63 Impala (my high school car)


http://67-72chevytrucks.com/vboard/s...Crew Cab Build
Getter-Done is offline   Reply With Quote
Old 09-19-2024, 07:37 PM   #5
CG
BlahBlahBlah
 
Join Date: Feb 2002
Location: Wa.
Posts: 19,914
Re: Is this a speed warning?

Looked at your pic again. I have no idea what the one is at bottom of speedo.
__________________
… … … … … … … … ... … … … … … … … … … … …
CG is offline   Reply With Quote
Old 09-19-2024, 08:06 PM   #6
too much stuff
Roadtrip!
 
too much stuff's Avatar
 
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,746
Re: Is this a speed warning?

Looks like some aftermarket gauges someone added... Not factory on either.
__________________
67 gmc custom lwb dakota truck. Sold...And bought back
69 swb 4x4 project (in progress)
70 c-10 lwb texas truck
70 4x4/BB/bkts/posi/tach(retired)
70 swb (wifes)
70 jimmy camper
71 K-5 factory 2wd
71 cheyenne 4x4/tach/posi/ plow rig
71 Cheyenne20 BB, buckets, tach, tilt, 4 speed
72 jimmy CST wyoming rig
72 jimmy Colorado rig
72 lifted texas 4x4 3/4 ton burb
65 fury conv. 383/auto
65 chrysler 300 "L" 413 auto
too much stuff is offline   Reply With Quote
Old 09-19-2024, 08:47 PM   #7
hugger6933
Registered User
 
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,273
Re: Is this a speed warning?

My 68 GMC had the speed warning but no gauges. I have not heard or seen that before has anyone else? Jim
hugger6933 is offline   Reply With Quote
Old 09-19-2024, 09:21 PM   #8
jerry moss
Born Psycho
 
jerry moss's Avatar
 
Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,897
Re: Is this a speed warning?

Quote:
Originally Posted by hugger6933 View Post
My 68 GMC had the speed warning but no gauges. I have not heard or seen that before has anyone else? Jim
i've seen a few set ups like that, never oened one though.
__________________
jerry moss
72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
jerry moss is offline   Reply With Quote
Old 09-19-2024, 10:49 PM   #9
jocko
Senior Member
 
jocko's Avatar
 
Join Date: Oct 2009
Location: Godley, TX
Posts: 17,968
Re: Is this a speed warning?

I'm guessing those gauges spent some time abroad and that's a km/hr conversion (1 mph ~ 1.6 km/hr).
jocko is offline   Reply With Quote
Old 09-19-2024, 11:00 PM   #10
Rust_never_sleeps
Senior Member
 
Rust_never_sleeps's Avatar
 
Join Date: Jun 2022
Location: San Ramon,CA
Posts: 537
Re: Is this a speed warning?

Quote:
Originally Posted by jocko View Post
I'm guessing those gauges spent some time abroad and that's a km/hr conversion (1 mph ~ 1.6 km/hr).
Maybe, but typically you just see a second set of numbers on the inside of the dial. No need for a second gauge for just a different unit of measure
__________________
1970 C10 Custom longbed 350/350
Rust_never_sleeps is offline   Reply With Quote
Old 09-19-2024, 11:25 PM   #11
Rick Bollinger
Registered User
 
Join Date: Mar 2018
Location: Colchester IL
Posts: 293
Re: Is this a speed warning?

Tomorrow I will check on what's up with the speedometer. What makes me think this is a stock item is that on the vacuum gauge the bezel has a raised ridged cast in it that the vacuum gauge actually fits in. Then it looks like a removable lens "missing" that goes over the top of it. unless the whole bezel is aftermarket that was sold with the vacuum gauge as a kit.
Rick Bollinger is offline   Reply With Quote
Old 09-20-2024, 08:01 PM   #12
HO455
Post Whore
 
HO455's Avatar
 
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,220
Re: Is this a speed warning?

Maybe it's out of a big truck. I'm pretty sure GM used those dashes through the mid 70's or later. You might try posting it in the Heavy Haulers section. Maybe one of the truck experts know what you have.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 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
HO455 is offline   Reply With Quote
Old 09-20-2024, 10:35 PM   #13
Rick Bollinger
Registered User
 
Join Date: Mar 2018
Location: Colchester IL
Posts: 293
Re: Is this a speed warning?

Well I took it apart and as far as I can tell the bezel was drilled out and the vacuum unit was added and glued in. It looks like this may have been a stand alone unit that was Intergrated into the bezel. It was done very well and almost looks like it could have been a factory piece. As far as the speedometer no idea. No needle inside or hooked to anything. But it does go to 55 then changes color on the sweep.
Attached Images
     
Rick Bollinger is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:30 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com