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Thread: Need Instructions For Re-Calibrating "Custom Rod Gauges" Instrument Cluster

  1. #1
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    Need Instructions For Re-Calibrating "Custom Rod Gauges" Instrument Cluster

    I have a "Custom Rod Gauges" instrument cluster in my '55 Chevy, it was in car when I purchased, so I don't have any instructions. I changed ring gear and pinion and now need to re-calibrate speedometer. Can someone please help me with instructions for re-calibrating this speedometer, or even better if someone could send me a copy of the installation manual with these instructions. I e-mailed the company but no answer. I also called the contact number but got recording that it is no longer a working number. Any help would be greatly appreciated. Thanks, Jim

  2. #2
    Registered Member chevynut's Avatar
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    I have heard that the customer support from the company is really bad on these gauges, and that they're not very reliable. I can't help you with the re-calibration process, but I imagine it has something to do with driving a mile and counting the pulses from the speedo sender. Maybe someone here has the instructions.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

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    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
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  3. #3
    Registered Member chevynut's Avatar
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    Found this for ya...I read that the speedo they use is actually a VDO.

    http://www.egauges.com/pdf/vdo/0-515-012-051.pdf

    Let us know how it goes.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  4. #4
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    Thanks for the help. I contacted VDO and they sent me the same instructions. I haven't tried it yet but I'm sure it will work. Thanks again.

  5. #5
    Registered Member Run-em's Avatar
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    Dang, back before there were more than 3 elements in the periodic table (earth,wind,fire) -- we used to have an adjustable screw on the speedometer's sending unit coming out of the transmission. In retrospect, "how quaint".

  6. #6
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    Lightman45, you're everywhere!

  7. #7
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    I just bought a 55 Chevy and need the instruction for setting the gas gauge for a set of custom rod gauges.
    when i tried to contact them it looks like they are out of business

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