Shift Indicator Fiber Optic...where does it plug in? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**COBALT** · 12-09-2002, 10:15 PM

...I have a replacement put into the column, but I can't figure out where the other end is supposed to plug in under the dash. One of the bulbs for the dash seems like a good place....

Anyone know?

*racedvl* · 12-09-2002, 10:43 PM

One of the turn in black plastic thingys has a plug in for the optic cable.

DanoDMano · 12-09-2002, 10:45 PM

As you are looking at the dash, I believe it goes into one of them on the bottom right side??
If it even matters which one I am not sure??

chevy2racr · 12-09-2002, 11:31 PM

mine have gone on the middle bulb for the speedo. but the turn in piece is't black, it white

jhow66 · 12-09-2002, 11:46 PM

This might help:

barn9 · 12-10-2002, 12:32 AM

While we're on this subject: the indicator that shows what gear you are in was missing on my truck when I bought it in '91, so I made one from red plastic, and it works great, but with so many other things to do to the truck over the years, I have never really paid attention to it since, so are there, or were there, any options concerning the pointer? Before anyone calls me stupid, I'll dig out the catalogs and look (now that I am thinking about it). What I am curious about though, is it flourescent (which I assume it would be to work with the fiber optic feed), or how does it work with the lights on?

**COBALT** · 12-10-2002, 01:01 AM

Well, from what I know there's two different kinds. One indicator is shorter and points throug a shift indicator that's smaller, metal, and has a different shaped lense. Those I believe are '67-'70. '71-'72 have a longer sloping indicator with a plastic framed lense that's larger and in my opinion easier to break.

I've had several auto columns and that's one difference I remember well. The metal ones you have to find used, but the plastic ones for '71-72 you can buy aftermarket or through GM.

Thanks for the pic, and the heads-up for where to plug this thing in. I'll check it out tomorrow.

12-09-2002, 10:15 PM	#1
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Shift Indicator Fiber Optic...where does it plug in? ...I have a replacement put into the column, but I can't figure out where the other end is supposed to plug in under the dash. One of the bulbs for the dash seems like a good place.... Anyone know? __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

12-09-2002, 10:45 PM	#3
DanoDMano Pronounced "Pew-al-up" Join Date: Oct 2002 Location: Puyallup, Washington Posts: 845	As you are looking at the dash, I believe it goes into one of them on the bottom right side?? If it even matters which one I am not sure?? __________________ Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos

12-09-2002, 11:31 PM	#4
chevy2racr So Many Ideas, So Little Money Join Date: Sep 2001 Location: Marshalltown, IA Posts: 1,610	mine have gone on the middle bulb for the speedo. but the turn in piece is't black, it white __________________ 72 Blazer 3/4 ton running gear 4.10s NP205/TH350 350 4in lift half doors 71 C10 with 454 99 S-10 5.1L SBC 700R4 09 Malibu Marshalltown, Iowa

12-09-2002, 11:46 PM	#5
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	bulb holder This might help: Attached Images __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

12-10-2002, 12:32 AM	#6
barn9 Half a bubble off! Join Date: Jun 2000 Location: Winfield, Ks, USA Posts: 5,588	While we're on this subject: the indicator that shows what gear you are in was missing on my truck when I bought it in '91, so I made one from red plastic, and it works great, but with so many other things to do to the truck over the years, I have never really paid attention to it since, so are there, or were there, any options concerning the pointer? Before anyone calls me stupid, I'll dig out the catalogs and look (now that I am thinking about it). What I am curious about though, is it flourescent (which I assume it would be to work with the fiber optic feed), or how does it work with the lights on? __________________ Just call me LB. '71 Cheyenne, 402BB, hauls blondes, brunettes, or redheads.

12-09-2002, 10:43 PM	#2
racedvl Account Suspended Join Date: Jan 2000 Location: Woodstock, IL Posts: 7,020	One of the turn in black plastic thingys has a plug in for the optic cable.

12-10-2002, 01:01 AM	#7
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Well, from what I know there's two different kinds. One indicator is shorter and points throug a shift indicator that's smaller, metal, and has a different shaped lense. Those I believe are '67-'70. '71-'72 have a longer sloping indicator with a plastic framed lense that's larger and in my opinion easier to break. I've had several auto columns and that's one difference I remember well. The metal ones you have to find used, but the plastic ones for '71-72 you can buy aftermarket or through GM. Thanks for the pic, and the heads-up for where to plug this thing in. I'll check it out tomorrow. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.



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