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87 c10 guage cluster repin

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Old 12-12-2009, 04:14 PM
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Default 87 c10 guage cluster repin

im swaping a 5.3L 4L60e in my 82 c10, and i bought an 87 electronic guage cluster so my speedometer will work with the tranny. i need to repin the guage cluster can anyone help on how to do this. thanks in advanced
Old 12-12-2009, 08:22 PM
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the cluster you bought, is it stock?
Old 12-12-2009, 10:41 PM
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yes i bought a stock cluster from an 87 c10.
Old 12-15-2009, 12:34 PM
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Sounds like your making progress! I have a Chilton's manual for a 81-91 C,K trucks. It has all the pin outs you would need.
Old 12-15-2009, 07:11 PM
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Originally Posted by bowtieguy79
Sounds like your making progress! I have a Chilton's manual for a 81-91 C,K trucks. It has all the pin outs you would need.
yeah i just need to send the harness to nelson performance. finish the clustrer, rad hoses, and litlle misc things. how did you get your speedometer to work? did you repin your cluster?

Last edited by lechez71; 12-15-2009 at 07:32 PM.
Old 12-15-2009, 09:47 PM
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Originally Posted by lechez71
yeah i just need to send the harness to nelson performance. finish the clustrer, rad hoses, and litlle misc things. how did you get your speedometer to work? did you repin your cluster?
Thats the plan, for the past 2 years I've been running with my Garmin
Old 12-16-2009, 05:03 AM
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Originally Posted by bowtieguy79
Thats the plan, for the past 2 years I've been running with my Garmin
i found this on the ls1 truck forum, but unfortunately i dont understand it. do you know how they did it? its an excel file.http://www.ls1truck.com/forums/lsx-t...ge-wiring.html
Old 12-16-2009, 06:58 AM
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I've chatted with pcmcobra a time or two about it, he's on this site too....

Its just like he said
"I swapped my 86 cluster with a 91 burb cluster. Had to repin it, was not hard. I have a spreadsheet somewhere...
After repinning, only thing you have to hook up from your harness is the speedo wire, and that pins into your cluster "plug".
I can email you my spreadsheet if you want, hope you can understand it. Best thing to do is if you have it, the cluster plug with all the wires from the 91 cluster, take out one wire at a time from your old "plug" and color match to new "plug"."


If you get a wire diagram for a 82 like your truck, and a 90 or what ever year your cluster is. Its not to bad, I started on mine and just never had time to go back and do it. The pins come out really easy with a pocket screwdriver or O ring pick.
Old 12-16-2009, 05:43 PM
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so i just pull the wires from the my 82 plug and put them in my new 87 cluster plug? im sorry, i dont know anything about automotive wiring thats why im sending my harness to nelson performance.
Old 12-17-2009, 06:59 AM
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Yes you will be swapping wire locations in your 82 to make it work like the 87. Are you sure that the 87 speedo is electric? I was thinking it was still cable???


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