1982 idiot light to gauge upgrade.

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Galane

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Jun 28, 2014
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Location
Idaho
First Name
Gregg
Truck Year
1982
Truck Model
Sierra 3500
Engine Size
350
Plug and play or do I need to move some wires in the wiring harness plug?
 

chengny

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Feb 22, 2012
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Location
NH
First Name
Jerry
Truck Year
1986
Truck Model
K3500
Engine Size
350/5.7
You need to move some wires.

But rather than disturbing the harness connector (and moving the pins around), it is often quicker - and way easier - to switch the inputs by cutting and re-aligning the leads that feed the connector.


Pin outs for an 82 with base cluster:

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Pin outs for an 82 with gauges (with & without tach):

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Apologies for the quality of the dwgs - but if you look at the lines going into the connectors you can read the color/number designations.
 
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