Gauge cluster question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

775stepside · 04-13-2014, 02:26 AM

Picked up a cluster from a guy who said it came off of a 85 blazer. It has the fuel gauge next to the speedo, the one I have has the smaller fuel gauge on the lower left and I have the Rpm next to the speedo. Would I just be able to swap this out with any modifications?

bigd65 · 04-13-2014, 09:32 AM

No, have to repin the plug in the rear, maybe use your printed cercuit on the back of your cluster.

775stepside · 04-13-2014, 10:53 PM

Ah dang ok

Ski-me · 04-14-2014, 03:45 PM

It's definitely do-able but it takes some time and effort. Get both of them off and lay them side by side. Then you need to trace path on the printed circut board and compare the two. Then re-pin.

why are you swapping? They usually go the other way around (try to swap in tach for big fuel gauge).

**hatzie** · 04-14-2014, 03:55 PM

What's wrong with your tach cluster?

Instrument cluster plug terminals for 73-87 in the FAQ.
http://67-72chevytrucks.com/vboard/s...d.php?t=456877

ray_mcavoy · 04-14-2014, 05:43 PM

Quote:

Originally Posted by hatzie

What's wrong with your tach cluster?

I'd be curious to know as well. If it's a 78 or newer tach and it's reading too high the fix is fairly simple --> http://howtoalmanac.com/kevin/projec...chfixtruck.htm

775stepside · 04-15-2014, 02:16 AM

We'll I had put aftermarket gauges, then took them out, so I'm missing my oil pressure and coolant temp. My tach doesn't read anything. It only spikes up once when I put the key in. I picked up this other cluster for $10. The truck is 2hours away at my parents house and I plan on driving it to my house and I just wanted to install that cluster with all the gauges just for the trip

motornut · 04-16-2014, 10:40 AM

i did a swap in my 78 below but it was idiots to gauges,and yes wires need to move

04-13-2014, 02:26 AM	#1
775stepside Registered User Join Date: Mar 2014 Location: Elko, nevada Posts: 286	Gauge cluster question Picked up a cluster from a guy who said it came off of a 85 blazer. It has the fuel gauge next to the speedo, the one I have has the smaller fuel gauge on the lower left and I have the Rpm next to the speedo. Would I just be able to swap this out with any modifications?

04-13-2014, 09:32 AM	#2
bigd65 Registered User Join Date: Mar 2000 Location: Clute, TX. Posts: 1,935	Re: Gauge cluster question No, have to repin the plug in the rear, maybe use your printed cercuit on the back of your cluster. __________________ 2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe

04-13-2014, 10:53 PM	#3
775stepside Registered User Join Date: Mar 2014 Location: Elko, nevada Posts: 286	Re: Gauge cluster question Ah dang ok

04-14-2014, 03:45 PM	#4
Ski-me Registered User Join Date: May 2012 Location: Colo Springs, CO Posts: 870	Re: Gauge cluster question It's definitely do-able but it takes some time and effort. Get both of them off and lay them side by side. Then you need to trace path on the printed circut board and compare the two. Then re-pin. why are you swapping? They usually go the other way around (try to swap in tach for big fuel gauge). __________________ - Jeff 89' K5 Blazer, 2.5" lift, 35" tires 04' GMC Yukon XL, 3/4 ton, 8.1L

04-14-2014, 03:55 PM	#5
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 5,014	Re: Gauge cluster question What's wrong with your tach cluster? Instrument cluster plug terminals for 73-87 in the FAQ. http://67-72chevytrucks.com/vboard/s...d.php?t=456877 __________________ 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... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

04-15-2014, 02:16 AM	#7
775stepside Registered User Join Date: Mar 2014 Location: Elko, nevada Posts: 286	Re: Gauge cluster question We'll I had put aftermarket gauges, then took them out, so I'm missing my oil pressure and coolant temp. My tach doesn't read anything. It only spikes up once when I put the key in. I picked up this other cluster for $10. The truck is 2hours away at my parents house and I plan on driving it to my house and I just wanted to install that cluster with all the gauges just for the trip

04-16-2014, 10:40 AM	#8
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Gauge cluster question i did a swap in my 78 below but it was idiots to gauges,and yes wires need to move __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350



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