instrument clusters 73-80? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

4x4k30 · 07-12-2014, 08:04 AM

I have looked everywhere and cant find any complete instrument clusters with tachs does anybody know where I can find a cluster that has been rebuilt I have seen some for the 67-72 but none for my 77 k3500

motornut · 07-14-2014, 03:04 PM

some call those "the unicorn" lol
some get lucky,find them in junkyards,and some pay "extra" for "AS-IS" on Ebay...
I had a neighbour find mine,he needed the later style,my lucky day.

77 i believe still had the tube oil pressure, amp gauge?
watch tho as they can not be swapped in without some wire "checking"

others shown here but I believe you want "no blue ring" style in 77

TheBlueBomber · 07-14-2014, 07:23 PM

I've been actively looking for a tach cluster as well. Im leaning towards the medium duty truck cluster... i want to run all the gauges along with the clock. And I've got 2 clock clusters so I just need a tach cluster now...

These things aren't getting any easier to find.

jonesky2 · 07-14-2014, 07:51 PM

Ive got a pretty nice 1980 tach with electric oil gauage that I would want to trade for one that is the correct style for my 76.

**hatzie** · 07-14-2014, 08:14 PM

Sometime in 77 I believe is the changeover from mechanical to electric oil pressure.
Ammeter is 73-75 only.
My 76 was mechanical oil with volt gauge I moved to a 78 tach cluster after I swapped in the 6.5

I have sold a couple of these on Fleabay.
I don't sell non working tachs without noting the condition of the tach as NON WORKING. Many of the 75 and prior units don't work and the boards are potted so I'm not messing with them.

Anyone with a small amount of electronics knowledge can test and even repair one of these GM tachs with a frequency counter that will measure in the 10HZ-1KHZ range, an audio signal generator that will output 10HZ-1KHZ frequencies, a DC bench power supply of at least 20VDC at 5A, and a hobby electronics grade soldering station like the Weller WLC100.

4x4k30 · 07-14-2014, 10:19 PM

I really would like to find a cluster without the mech. oil gauge which all 77s came with . I would like to find someone who rebuilds these clusters using new parts like new housings and gauges .

Mr.Chevy4x4 · 07-15-2014, 08:17 PM

Johnny, check this out. You can add one to your original cluster:

http://gmsports.com/content/new-tach...and-gmc-trucks

Mike

4x4k30 · 07-16-2014, 12:20 AM

Quote:

Originally Posted by Mr.Chevy4x4

Johnny, check this out. You can add one to your original cluster:

http://gmsports.com/content/new-tach...and-gmc-trucks

Mike

thanks mike I like that tach if I use one of them I would have to find something to replace the fuel gauge in the left hand corner I know that's where a clock would go but I have never been a fan of the clock because I have never seen one work for long but I seen that they have a tach without the fuel gauge that I could go with.

RoughKuntry · 07-16-2014, 05:33 AM

I have that set up for my 77 GMC & in my 1980 Chevy C10

russgt · 07-19-2014, 08:05 AM

My 76'

Mr.Chevy4x4 · 07-19-2014, 09:24 AM

Here's one on FleaBay Johnny:

http://www.ebay.com/itm/RARE-1973-19...095bd0&vxp=mtr

Only 7 hours left, no bids.

Another:
http://www.ebay.com/itm/VINTAGE-1973...94960c&vxp=mtr

One more, but kind of pricy:
http://www.ebay.com/itm/1973-1987-Ch...10cf8d&vxp=mtr

Mike

**hatzie** · 07-19-2014, 09:52 AM

Quote:

Originally Posted by Mr.Chevy4x4

Here's one on FleaBay Johnny:

http://www.ebay.com/itm/RARE-1973-19...095bd0&vxp=mtr

Only 7 hours left, no bids.

Another:
http://www.ebay.com/itm/VINTAGE-1973...94960c&vxp=mtr

One more, but kind of pricy:
http://www.ebay.com/itm/1973-1987-Ch...10cf8d&vxp=mtr

Mike

1 & 3 are 77-80
2 is 1976 only

MalibuSSwagon · 07-19-2014, 11:36 AM

I sold one awhile ago on ebay, I think I got $50, the tach was not working which I noted in the ad.

07-12-2014, 08:04 AM	#1
4x4k30 Registered User Join Date: Jun 2003 Location: ga Posts: 630	instrument clusters 73-80? I have looked everywhere and cant find any complete instrument clusters with tachs does anybody know where I can find a cluster that has been rebuilt I have seen some for the 67-72 but none for my 77 k3500 __________________ 4x4k30 if trouble was money i would have plenty

07-14-2014, 03:04 PM	#2
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: instrument clusters 73-80? some call those "the unicorn" lol some get lucky,find them in junkyards,and some pay "extra" for "AS-IS" on Ebay... I had a neighbour find mine,he needed the later style,my lucky day. 77 i believe still had the tube oil pressure, amp gauge? watch tho as they can not be swapped in without some wire "checking" others shown here but I believe you want "no blue ring" style in 77 Attached Images __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350

07-14-2014, 07:23 PM	#3
TheBlueBomber Registered User Join Date: Feb 2013 Location: Cary, NC Posts: 816	Re: instrument clusters 73-80? I've been actively looking for a tach cluster as well. Im leaning towards the medium duty truck cluster... i want to run all the gauges along with the clock. And I've got 2 clock clusters so I just need a tach cluster now... These things aren't getting any easier to find. __________________ Austin 1996 Chevrolet K1500 Silverado 1979 Chevrolet K10 Scottsdale - Carolina K10 - My 4.8L Twin turbo build - Project Short Stroke - Instagram - TheBlueBomber1996

07-14-2014, 07:51 PM	#4
jonesky2 Registered User Join Date: Nov 2009 Location: Hooper Utah Posts: 224	Re: instrument clusters 73-80? Ive got a pretty nice 1980 tach with electric oil gauage that I would want to trade for one that is the correct style for my 76.

07-14-2014, 08:14 PM	#5
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: instrument clusters 73-80? Sometime in 77 I believe is the changeover from mechanical to electric oil pressure. Ammeter is 73-75 only. My 76 was mechanical oil with volt gauge I moved to a 78 tach cluster after I swapped in the 6.5 I have sold a couple of these on Fleabay. I don't sell non working tachs without noting the condition of the tach as NON WORKING. Many of the 75 and prior units don't work and the boards are potted so I'm not messing with them. Anyone with a small amount of electronics knowledge can test and even repair one of these GM tachs with a frequency counter that will measure in the 10HZ-1KHZ range, an audio signal generator that will output 10HZ-1KHZ frequencies, a DC bench power supply of at least 20VDC at 5A, and a hobby electronics grade soldering station like the Weller WLC100. __________________ 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.

07-14-2014, 10:19 PM	#6
4x4k30 Registered User Join Date: Jun 2003 Location: ga Posts: 630	Re: instrument clusters 73-80? I really would like to find a cluster without the mech. oil gauge which all 77s came with . I would like to find someone who rebuilds these clusters using new parts like new housings and gauges . __________________ 4x4k30 if trouble was money i would have plenty

07-15-2014, 08:17 PM	#7
Mr.Chevy4x4 Registered User Join Date: Jul 2007 Location: Sims, NC Posts: 531	Re: instrument clusters 73-80? Johnny, check this out. You can add one to your original cluster: http://gmsports.com/content/new-tach...and-gmc-trucks Mike __________________ All things Chevy truck: 1986 SWB "Jolene" boosted 5.3/4l80e project

07-16-2014, 05:33 AM	#9
RoughKuntry Registered User Join Date: Mar 2013 Location: Washington Posts: 238	Re: instrument clusters 73-80? I have that set up for my 77 GMC & in my 1980 Chevy C10 __________________ RoughKuntry 73 GMC 25 HUNDRED :Sold 79 GMC High Sierra 4x4 (Ma-Duece) :Sold 99 Chevrolet LS 4.8l/5 Speed Manual 4x4 :Selling 88 Chevrolet Burban 2500 4x4 :Buying

07-19-2014, 08:05 AM	#10
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: instrument clusters 73-80? My 76' __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

07-19-2014, 09:24 AM	#11
Mr.Chevy4x4 Registered User Join Date: Jul 2007 Location: Sims, NC Posts: 531	Re: instrument clusters 73-80? Here's one on FleaBay Johnny: http://www.ebay.com/itm/RARE-1973-19...095bd0&vxp=mtr Only 7 hours left, no bids. Another: http://www.ebay.com/itm/VINTAGE-1973...94960c&vxp=mtr One more, but kind of pricy: http://www.ebay.com/itm/1973-1987-Ch...10cf8d&vxp=mtr Mike __________________ All things Chevy truck: 1986 SWB "Jolene" boosted 5.3/4l80e project

07-19-2014, 11:36 AM	#13
MalibuSSwagon Registered User Join Date: Sep 2009 Location: Weare,NH Posts: 1,592	Re: instrument clusters 73-80? I sold one awhile ago on ebay, I think I got $50, the tach was not working which I noted in the ad. __________________ Eric 1992 Oldsmobile Custom Cruiser 1986 Chevrolet C10\|5.3L\|TKO600\|Shortbed\|Custom Deluxe 1983 Malibu Wagon\|TPI 305\|T5 5 speed\|3.73 non-posi



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