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gauge help

Discussion in 'The Garage' started by Big GMC truck, Aug 26, 2005.

  1. Big GMC truck

    Big GMC truck Registered Member

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    Location:
    California
    I have a 1984 GMC k1500, 305, that is in need of some gauges. How hard would it be to put in a tach and a water gauge? How do I install the tach? Will the temp gauge come with a sending unit that will fit into the existing hole in the head.
     
  2. wildbilzrydn

    wildbilzrydn 1/2 ton status

    Joined:
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    Location:
    Joliet, IL
    The only tachometers I've ever done are the sun supertach IIs and they're real simple, four wires 12 vdc(+), o vdc (-), 12 vdc from lighting system, and the signal wire from your HEI cap where it says "tach".
    Temp senders i've done were mechanical, they come with a "bulb" that you thread into the hole where the Idiot light sender lives and a spring wound wire you push through the firewall and connect to the gauge.
     

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