C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

A question about dash bulbs.

Thread Tools
 
Search this Thread
 
Old Sep 20, 2023 | 07:05 AM
  #1  
Z51JEFF's Avatar
Z51JEFF
Thread Starter
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2003
Posts: 14,150
Likes: 936
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Default A question about dash bulbs.

I recently got the dash of my 75 back together only to find one of the bulbs is out,it's on the far right of the tach. Does this thing have to come completely apart to replace that one bulb or can it be accessed from the bottom of the dash?
Reply
Old Sep 20, 2023 | 08:31 AM
  #2  
Piersonpie's Avatar
Piersonpie
Melting Slicks
Shutterbug
Loved
Community Favorite
Top Answer: 5
 
Joined: Apr 2021
Posts: 2,714
Likes: 2,162
From: Minnesota
Default

You might be able to reach it from underneath if you have small enough fingers. Otherwise you can slightly lower the steering column and remove only the gauge panel to gain access to all the lights.

Id also recommend replacing the bulbs with LEDs. I did it on my 76 a few months ago and love the blue backlighting rather than the yellowish green it was before.



Reply
Old Sep 20, 2023 | 08:49 AM
  #3  
Corvette-ZL1's Avatar
Corvette-ZL1
Burning Brakes
 
Joined: Mar 2022
Posts: 1,159
Likes: 492
Default

Originally Posted by Piersonpie
You might be able to reach it from underneath if you have small enough fingers. Otherwise you can slightly lower the steering column and remove only the gauge panel to gain access to all the lights.

Id also recommend replacing the bulbs with LEDs. I did it on my 76 a few months ago and love the blue backlighting rather than the yellowish green it was before.


Wow. The LEDs look sweet! I may have to do that as well.
Reply
Old Sep 20, 2023 | 09:16 AM
  #4  
Eliredandblack's Avatar
Eliredandblack
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2018
Posts: 2,327
Likes: 721
From: Marietta GA
Default

Make sure to get LEDs that are not polarity sensitive. I like Superbright LEDs. You enter your year, make, and model, then each bulb is crossed referenced to a corresponding LED.
Reply
Old Sep 21, 2023 | 07:56 PM
  #5  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,216
Likes: 9,354
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

Just be aware they arent dimmable
Reply
Old Sep 21, 2023 | 08:17 PM
  #6  
sydvicious12's Avatar
sydvicious12
Instructor
 
Joined: Aug 2023
Posts: 110
Likes: 24
From: Born Florianopolis Brazil now São Paulo
Default

Why risk problem? Take apart and do it right.
Reply
Old Sep 21, 2023 | 08:39 PM
  #7  
Corvette-ZL1's Avatar
Corvette-ZL1
Burning Brakes
 
Joined: Mar 2022
Posts: 1,159
Likes: 492
Default

Originally Posted by Rescue Rogers
Just be aware they arent dimmable
Good point.... They don't have dimmable LED replacements?
Reply
Old Sep 21, 2023 | 08:45 PM
  #8  
BLUE1972's Avatar
BLUE1972
Race Director
15 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Oct 2008
Posts: 19,227
Likes: 1,672
From: Long Island
Default

Originally Posted by Corvette-ZL1
Good point.... They don't have dimmable LED replacements?
you have to change the dimmer, My friend did it and it hurts the eyes after a while.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Sep 21, 2023 | 10:53 PM
  #9  
carriljc's Avatar
carriljc
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Default

You want dimmable? You could do LED strip lighting. Here's how my installation went and how it looks. https://www.corvetteforum.com/forums...-and-tach.html
Reply
Old Sep 22, 2023 | 05:24 AM
  #10  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,216
Likes: 9,354
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

There are amperage dimmable bulbs but harder to find. I believe the leds usually use voltage, hence the issues with dimmimg and turn signals with older cars. And you need a led turn signal and hazard relays....
Reply
Old Sep 23, 2023 | 06:23 PM
  #11  
gkellerga's Avatar
gkellerga
Heel & Toe
 
Joined: Jun 2022
Posts: 16
Likes: 1
Default

Superbright LEDs are great. I found that the two ears that hold the bulb in the socket when you twist it are not quite as long as on the original bulbs. As such, the LEDs can pop out of the sockets and into your gauges, which creates additional headaches to retrieve them.
Reply
Old Sep 23, 2023 | 09:17 PM
  #12  
madvette74's Avatar
madvette74
Burning Brakes
25 Year Member
Photogenic
Liked
Loved
 
Joined: Aug 2000
Posts: 751
Likes: 32
From: Woburn,ma ma
Default

Originally Posted by Piersonpie
You might be able to reach it from underneath if you have small enough fingers. Otherwise you can slightly lower the steering column and remove only the gauge panel to gain access to all the lights.

Id also recommend replacing the bulbs with LEDs. I did it on my 76 a few months ago and love the blue backlighting rather than the yellowish green it was before.


I did the same, love it, mine has that green color.
Reply
Old Sep 23, 2023 | 09:35 PM
  #13  
Prestige593's Avatar
Prestige593
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2006
Posts: 240
Likes: 58
From: Jacksonville, Florida
Default


I did LED's also in my '77. Very happy with my decision. I got mine off of Amazon and had no issues with polarity. Used Lt Blue for the gauges and white for the warning lights. I also painted the inside of my speedo and Tach cans white.
Reply
Old Sep 23, 2023 | 09:43 PM
  #14  
Corvettedave02's Avatar
Corvettedave02
C3. 427, 4-link, c7 z06
Supporting Lifetime Gold
All Eyes On Me
Photogenic
Photoriffic
Shutterbug
 
Joined: Sep 2019
Posts: 997
Likes: 207
From: Virginia
Default

I'm going with red LEDs so all the aftermarket gauges and stereo lights match. Was the only common color.
Reply
Old Sep 24, 2023 | 07:51 AM
  #15  
TommyFox's Avatar
TommyFox
Melting Slicks
10 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Jun 2011
Posts: 2,383
Likes: 385
From: Leland , North Carolina
Default

Originally Posted by BLUE1972
you have to change the dimmer, My friend did it and it hurts the eyes after a while.
So your advice would be stay with the factory bulbs? I have a few burned out bulbs and need to replace them all.
Reply
Old Sep 24, 2023 | 08:43 AM
  #16  
Bikespace's Avatar
Bikespace
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 11,953
Likes: 4,508
From: Virginia
Default

Originally Posted by TommyFox
So your advice would be stay with the factory bulbs? I have a few burned out bulbs and need to replace them all.
I would never suggest not converting to LEDs.

Way back when I bought my first batch, bi-directional, dimmable, warm LEDs were not yet a thing. So I have warm LEDs that I had to check for polarity. You can barely tell they are on during they day, at night they look stock+. But they have that warm, retro glow.

There are much better options today, including dimmable, or you can replace the stock dimmer with a PWM module and make any LED dimmable.

One advantage of LEDs is that you get to pick your color and/or color temperature (3000K is warm, 6500K is harsh white light that will kill your night vision, for example). But the big advantage is that you can get the same, or more, lumens for a fraction of the current in your car's 50 year old circuits.

Originally Posted by Corvettedave02
I'm going with red LEDs so all the aftermarket gauges and stereo lights match. Was the only common color.
Please post a picture when you are done!
Reply
Old Sep 24, 2023 | 08:51 AM
  #17  
BLUE1972's Avatar
BLUE1972
Race Director
15 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Oct 2008
Posts: 19,227
Likes: 1,672
From: Long Island
Default

Originally Posted by TommyFox
So your advice would be stay with the factory bulbs? I have a few burned out bulbs and need to replace them all.
//

When I had the dash apart , I cleaned all the sockets, dimmer / switch, feeds and all terminals, I also ran a new ground to each side of the dash.
The gauges and Tech / Speedo are super bright with the stock bulbs,
The plus is that it looks natural , without the overflow of the light in the gauge face.

To each their own, I like the factory look and its bright enough that I usually durn it down some.
Reply

Get notified of new replies

To A question about dash bulbs.

Old Sep 24, 2023 | 12:38 PM
  #18  
gkellerga's Avatar
gkellerga
Heel & Toe
 
Joined: Jun 2022
Posts: 16
Likes: 1
Default

No. Go with the LEDs. Just make sure the LEDs are securely seated in the socket. If not, they will easily pop out and then fall into the the speedo, tach, or instrument gauge unit. Then the pain starts.
Reply
Old Sep 24, 2023 | 01:08 PM
  #19  
Mike H.'s Avatar
Mike H.
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Apr 2018
Posts: 190
Likes: 38
From: Oregon
Default

I found the Superbright LEDs not to fit very well, In fact, I had to remove the dash several times due to them falling out. I checked the 'ear tab' width on the bulb and sure enough they where narrower.
Reply
Old Sep 24, 2023 | 06:42 PM
  #20  
gkellerga's Avatar
gkellerga
Heel & Toe
 
Joined: Jun 2022
Posts: 16
Likes: 1
Default

Yep. Had to remove my several times as well. Finally got it back in. They are great once you get them in.
Reply



All times are GMT -4. The time now is 03:31 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE