Instrument clusters - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**old Rusty C10** · 06-23-2009, 10:34 AM

I need a bit of schooling about instrument clusters

I know there are differences between 73-80 and 81-87
Is there differences between the wiring set up for guage and idiot light?
What differences do i need to overcome?
Im thinking of replacing my guage set up with another the thing is i dont know if mine had idiot lights or guages as the PO put in some not working aftermarket temp and oil guages
I would prefer the stock guages in the dash.. neither cluster has a tach

Also there is no difference between the cluster that came from a stick as opposed to an automatic other than the black tape that covers the gear selector section?
TIA
Bob

86 Jim Dandy · 06-23-2009, 10:42 AM

Don't know if this will help. Its mostly about Tach's. http://www.73-87.com/7387garage/inte...achometers.htm But good info.

dswancutt · 06-23-2009, 10:56 AM

There are differences in the wiring between gauges and no gage clusters. There is no difference in the cluster between manual and automatic. I will try to illistrate the differences in wiring. The number is the color of the wire and this is how it would look if the cluster was face down on a table.

No gages

150 14
33 15
25 39
939 empty
39 empty
35 150
31 237
8 empty
11 30

with gages

35 150
150 14
30 15
39 237
31 empty
39 931
150 39
8 33
11 30

The repeated numbers are correct and this will work from 78-82. My source is the GM Wiring diagram.

06-23-2009, 10:34 AM	#1
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Instrument clusters I need a bit of schooling about instrument clusters I know there are differences between 73-80 and 81-87 Is there differences between the wiring set up for guage and idiot light? What differences do i need to overcome? Im thinking of replacing my guage set up with another the thing is i dont know if mine had idiot lights or guages as the PO put in some not working aftermarket temp and oil guages I would prefer the stock guages in the dash.. neither cluster has a tach Also there is no difference between the cluster that came from a stick as opposed to an automatic other than the black tape that covers the gear selector section? TIA Bob __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

06-23-2009, 10:42 AM	#2
86 Jim Dandy Registered User Join Date: May 2009 Location: Boonville, NY Posts: 4	Re: Instrument clusters Don't know if this will help. Its mostly about Tach's. http://www.73-87.com/7387garage/inte...achometers.htm But good info. Last edited by 86 Jim Dandy; 06-23-2009 at 10:43 AM.

06-23-2009, 10:56 AM	#3
dswancutt Registered User Join Date: Jul 2003 Location: Franklin, NE Posts: 387	Re: Instrument clusters There are differences in the wiring between gauges and no gage clusters. There is no difference in the cluster between manual and automatic. I will try to illistrate the differences in wiring. The number is the color of the wire and this is how it would look if the cluster was face down on a table. No gages 150 14 33 15 25 39 939 empty 39 empty 35 150 31 237 8 empty 11 30 with gages 35 150 150 14 30 15 39 237 31 empty 39 931 150 39 8 33 11 30 The repeated numbers are correct and this will work from 78-82. My source is the GM Wiring diagram.



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