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#1 |
Registered User
![]() Join Date: Jul 2010
Location: mogadore ohio
Posts: 867
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Strange light
Took the cluster out of my 72 k20 and found this strange bulb and socket . Anyone know what it's too?
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1969 chevy c10 lwb stepside 250 6 3 ott 1971 chevy c10 lwb 250 6 with power steering 3 ott 1972 chevy k20 4x4 350/TH350 automatic 1978 chevy Malibu 4dr 305 2bbl (all original) 1979 chevy k10 Scottsdale 350/th350 full-time 4wd(daily driver) |
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#2 |
Active Member
![]() Join Date: Jun 2016
Location: Salida, CA
Posts: 177
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Re: Strange light
Looks like the one for the fiber optic line to the trans indicator.
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David Larsen 1970 Chevrolet C-10 |
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#3 |
Registered User
![]() Join Date: Jul 2010
Location: mogadore ohio
Posts: 867
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Re: Strange light
Does it go inside the column?
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1969 chevy c10 lwb stepside 250 6 3 ott 1971 chevy c10 lwb 250 6 with power steering 3 ott 1972 chevy k20 4x4 350/TH350 automatic 1978 chevy Malibu 4dr 305 2bbl (all original) 1979 chevy k10 Scottsdale 350/th350 full-time 4wd(daily driver) |
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#4 |
Senior Member
![]() Join Date: Jul 2001
Location: Wellington, Ks
Posts: 10,184
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Re: Strange light
What he said, fiber optic wire for the trans. shift indicator on the non tilt column. Do a "fiber optic wire " search. It does go in the column and thru the shift indicator housing to light up the shift dial. Not really very bright but it works. Tilt columns use a different set up.
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1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks |
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#5 |
Registered User
Join Date: Jan 2014
Location: Gaylord, Michigan
Posts: 127
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Re: Strange light
To clarify, the bulb in your hand with the wire attached goes in your gauge cluster. It is one of the lights for the cluster with the added function of the fiber optic gathering light from the bulb and delivering it at the other end of the wire to your shift pointer.
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![]() 72 K5 Blazer 72 K10 SWB (in pieces under slow construction!) 72 K20 |
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