gauge cluster lighting - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMC65Guy · 07-02-2008, 04:23 PM

Is there a backlight on a stock '65 gauge cluster? HOW can you see at night.. haha

slorio · 07-02-2008, 05:08 PM

Yes, my 1966 GMC cluster has twist in bulb holders on the back of the cluster that light up each individual guage. When you untwist the holder, you find a push in bulb that illuminates each guage. A lot of the holders in my cluster were broken. I found new ones in the electrical section at Autozone.

The other thing that sometimes goes bad on the GMC clusters is the printed circuit board on the back of the cluster. The plastic that holds the copper strips on the board often deteriorates.

I hope this is helpful.
Regards,
Steve Lorio
New Orleans

billydonn · 07-02-2008, 06:27 PM

If all instrument lights are out, check your tail light circuit fuse. You may be without rear running lights- it's the same circuit as the instruments.

GMC65Guy · 07-02-2008, 09:00 PM

tails work. May just be the wiring job the PO did. The gauges seem to not work either, the speedo kind of bounces back and forth from 0-10mph, granted I havnt gone faster than that yet in the truck... I've also come to the realization that I basically need, a complete new bed, and basically all new paneling in the front, and new doors, and cab corner patch panels, andddd some floor panels.. ahhhh... at least Im not restoring it haha.

07-02-2008, 04:23 PM	#1
GMC65Guy Registered User Join Date: Jun 2008 Location: Stillwater,Oklahoma Posts: 130	gauge cluster lighting Is there a backlight on a stock '65 gauge cluster? HOW can you see at night.. haha

07-02-2008, 05:08 PM	#2
slorio Registered User Join Date: Sep 2006 Location: Louisiana Posts: 375	Re: gauge cluster lighting Yes, my 1966 GMC cluster has twist in bulb holders on the back of the cluster that light up each individual guage. When you untwist the holder, you find a push in bulb that illuminates each guage. A lot of the holders in my cluster were broken. I found new ones in the electrical section at Autozone. The other thing that sometimes goes bad on the GMC clusters is the printed circuit board on the back of the cluster. The plastic that holds the copper strips on the board often deteriorates. I hope this is helpful. Regards, Steve Lorio New Orleans

07-02-2008, 06:27 PM	#3
billydonn Council of the Elders Join Date: Mar 2008 Location: Omaha, NE Posts: 212	Re: gauge cluster lighting If all instrument lights are out, check your tail light circuit fuse. You may be without rear running lights- it's the same circuit as the instruments. __________________ 66 C-10 Stepside 350 Tuned Port Injection Tremec TKO-600 Truck Pictures: http://community.webshots.com/user/billydonn Truck Video: http://good-times.webshots.com/video...ost=good-times

07-02-2008, 09:00 PM	#4
GMC65Guy Registered User Join Date: Jun 2008 Location: Stillwater,Oklahoma Posts: 130	Re: gauge cluster lighting tails work. May just be the wiring job the PO did. The gauges seem to not work either, the speedo kind of bounces back and forth from 0-10mph, granted I havnt gone faster than that yet in the truck... I've also come to the realization that I basically need, a complete new bed, and basically all new paneling in the front, and new doors, and cab corner patch panels, andddd some floor panels.. ahhhh... at least Im not restoring it haha.



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