?? Behind the gauge cluster - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lookingtobuy · 07-16-2007, 06:26 PM

Hi all

I was doing some bulb replacement on the gauges and was wondering if anyone could answer 2 questions.

1. One of the sockets is white with a male spade terminal, it is the bulb that lights one side of the speedo, any idea why its different??

2. There is a wire with a female spade end all wrapped up in the column harness, again any idea as to what its for??

Thanks and have a great night----

71chevylowrider · 07-16-2007, 06:28 PM

Maybe thats the wire that feeds the light in the column for the gear indicator?

lookingtobuy · 07-16-2007, 06:30 PM

I'll check that out

I'm missing the needle but I still have the p.r.n.d.2.1.

Does that light up, or is it supposed to??

jaros44sr · 07-16-2007, 07:10 PM

My PRND12 was fiber optics, maybe that's it

71chevylowrider · 07-16-2007, 07:17 PM

Good timing, there was recently a post all about this, apparently if you have a tilt column, it takes a different light source then if you had a non tilt, there is alot of good info that covers this in this post.

http://www.67-72chevytrucks.com/vboa...ht=fiber+optic

07-16-2007, 06:26 PM	#1
lookingtobuy Registered User Join Date: Sep 2006 Location: Northeast Posts: 159	?? Behind the gauge cluster Hi all I was doing some bulb replacement on the gauges and was wondering if anyone could answer 2 questions. 1. One of the sockets is white with a male spade terminal, it is the bulb that lights one side of the speedo, any idea why its different?? 2. There is a wire with a female spade end all wrapped up in the column harness, again any idea as to what its for?? Thanks and have a great night---- Attached Images

07-16-2007, 06:28 PM	#2
71chevylowrider Senior Member Join Date: Sep 2006 Location: Vancouver, WA Posts: 1,015	Re: ?? Behind the gauge cluster Maybe thats the wire that feeds the light in the column for the gear indicator?

07-16-2007, 06:30 PM	#3
lookingtobuy Registered User Join Date: Sep 2006 Location: Northeast Posts: 159	Re: ?? Behind the gauge cluster I'll check that out I'm missing the needle but I still have the p.r.n.d.2.1. Does that light up, or is it supposed to??

07-16-2007, 07:10 PM	#4
jaros44sr Registered User Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,438	Re: ?? Behind the gauge cluster My PRND12 was fiber optics, maybe that's it __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

07-16-2007, 07:17 PM	#5
71chevylowrider Senior Member Join Date: Sep 2006 Location: Vancouver, WA Posts: 1,015	Re: ?? Behind the gauge cluster Good timing, there was recently a post all about this, apparently if you have a tilt column, it takes a different light source then if you had a non tilt, there is alot of good info that covers this in this post. http://www.67-72chevytrucks.com/vboa...ht=fiber+optic



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