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  1. LetsGoBrandon

    DAKOTA DIGITAL

    Just installed some HDX guages from Dakota Digital on my 88. Used what I believe to be the speed high (yellow) and speed ground (black/white). Calibration adjust to set but speed jumps under 27 mph. Seems to be fine at higher speeds though. Is this a Calibration issue or something not wired...
  2. LetsGoBrandon

    '89 Fun daily build

    I am installing the HDX cluster and trying to figure out the wiring for the alternator as well. 88 GMC C1500. What was the solution that worked for yours? When I use the pink/black in the 12v keyed I don't get the alternator to charge. If I used the brown wire the gauges don't turn on. Finally...
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