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#1 |
Registered User
Join Date: Nov 2014
Location: Byrdstown, TN
Posts: 1
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1978 Chevrolet Cluster?
I have a question about the instrument cluster in my 1978 Chevrolet c30, it has the warning(dummy) lights instead of the 4 gauges that are in the 4 holes to the left of the 2 main gauges(speedometer & fuel). Can anyone tell me if the clusters interchange. Bottom line is that I have the instrument cluster with the warning lights in it and I want to change it to a cluster that has the 4 gauges(temp,volt,fuel,etc) and a factory tach. Are the wiring harnesses different or can I buy a cluster and plug it up and it work? If not what does it take to be able to put a factory tach cluster in my truck? Thanks for any help!
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#2 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: 1978 Chevrolet Cluster?
I did that,in my 78
http://67-72chevytrucks.com/vboard/s...=421767&page=4 there is a bit of wire swapping in the cluster plug and senders need to be changed, I had to add another ground,any questions just ask. the hardest part seemed to be finding the cluster. the idiot cluster does not fit the factory gauges, there is the aftermarket option to have a tach/fuel gauge,requires some case mods.
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#3 |
Registered User
Join Date: Sep 2015
Location: the colony
Posts: 102
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Re: 1978 Chevrolet Cluster?
not to hi-jack but i have a 76 with gauges and it has a manual oil pressure gauge. Never have seen that before. is it factory? The printed circuit looks legit.
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#4 |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,951
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Re: 1978 Chevrolet Cluster?
73-76 have capillary tube mechanical oil pressure gauges.
76 has the volt gauge with mechanical oil pressure. 73-75 has an ammeter. 77-80 have electric oil and volt gauge. There are several different varieties of warning lamps ranging from none or 1, not sure, to 4 ( 2 in the bottom of each large gauge )
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. Last edited by hatzie; 10-17-2015 at 11:12 AM. |
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