The five gauge cluster I took out of the '73 worked great, so it's a shame to let it go to waste. I'm going to eBay it and hope it gets picked up. But I need some info about it for the listing. What years shared the same gauge cluster as the '73 (with the speedo going to 100)? Wasn't it '73-'78? And, technically, this cluster could be used with any truck that had the mechanical speedo, right? What were those years?
CK5
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Gauge cluster interchangability
- Thread starter big94gmc
- Start date
I can't give exact year splits, but the differences between later (again, not sure exact years) and the '73 are going to be, at a minimum:
Printed circuit board/instrument panel connector pinout
Ammeter instead of a voltmeter
Mechanical oil pressure gauge
Speedometer cable clips to the cluster housing on yours, correct? Later ones do not.
Printed circuit board/instrument panel connector pinout
Ammeter instead of a voltmeter
Mechanical oil pressure gauge
Speedometer cable clips to the cluster housing on yours, correct? Later ones do not.
i dont know exact... but i put a 73 cluster in my 78 a while back..... then i was going to put a 86 cluster in my truck but didnt want to loose the factory tach and once I go with a cluster that says... unleaded fuel only need a catalytic converter - at least that is what they said at inspection and I didnt wanna argue with them.... 
drofdar
1/2 ton status
Small Hijack, but anyone know of a tach that will fit in the large fuel guage hole on the right side of these clusters? Then the fuel guage could live in the small hole on lower left. It only has the BRAKE light on mine.
drofdar said:
what year?
I have a 79 gmc cluster in mine.. factory tach...
so I got the big speedo, big tach, small amp, temp, fuel, and whatever the fourth is...
drofdar
1/2 ton status
I have two, 73 and 80. Both have the large fuel guage. 79 GMC would fit, wonder where I can get one?
nstarry
1/2 ton status
I hope this is sort of what you looking for ?but the interchangebility will depend on the face trim right ??? my LMC catolog show a split for 73-75 76-87 but they dont sell the whole cluster, and the individual gages have a million splits. but the they sell the curciut panel thing for the back of the gage cluster and its split is the same 73-75 and somthing like 76-79, and all varies with tach or not! I would list it for a 73 and tell them to do there own research just to be on the safe side! I dont know if any of this helps at all
BizeeB65
1/2 ton status
You putting that instrument cluster out of a 73 on ebay? Let me make you an offer first!
beater_k20
Banned
RootBreaker said:what year?
I have a 79 gmc cluster in mine.. factory tach...
so I got the big speedo, big tach, small amp, temp, fuel, and whatever the fourth is...
if im not mistaken, the "factory tach" clusters didnt come in light duty trucks, only medium duty trucks, C60s and the like. there are a couple of guys out there that modify factory clusters to accept this tach, and a smaller fuel gauge. one of them can be found in the 73-87 area of www.67-72chevytrucks.com , although i cant remember his name at the moment.
