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#1 |
Registered User
Join Date: Feb 2009
Location: Pocahontas Ar
Posts: 23
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Need Info on Instrument Clusters
Hi everyone, I have a question about the inerchangeablity of the guage clusters from the 73-87 pickup trucks. The reason why I ask is because I recently changed out the entire wireing harness in my 78 to a wireing harness out of a 77. I am wondering if my 78 dash will work??? The dash is a warning light only type. But the 77 truck I took the harness out of had full instrumentation. I would use the 77 dash but it is broken and non useable.
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#2 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Need Info on Instrument Clusters
The big difference will be that 77 had a mechanical oil gauge. You will need to run a wire for the electric sending unit.
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#3 |
Registered User
Join Date: Feb 2009
Location: Pocahontas Ar
Posts: 23
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Re: Need Info on Instrument Clusters
Thanks N2TRUX So your saying everything else should work like the turn signel indicators,high beam indicator, ect.
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#4 |
Registered User
Join Date: Jul 2009
Location: West Jefferson, OH
Posts: 999
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Re: Need Info on Instrument Clusters
I was under the impression that several wires were in different locations.
If you haven't already found out, the wiper wiring, switch, and motor are completely different between '77 and '78. |
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#5 |
Registered User
Join Date: Feb 2009
Location: Pocahontas Ar
Posts: 23
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Re: Need Info on Instrument Clusters
That was what I was thinking yeah I saw that the wiper switch was different I changed it out with the 77 one But I did not know that the wiper motor was different guess I may have to change it out as well.
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#6 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: Need Info on Instrument Clusters
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