Michael Denmark Posted September 6, 2018 Share Posted September 6, 2018 Is it possible to calibrate the speedometer on a 1933 Dodge ? Link to comment Share on other sites More sharing options...
David_Leech Posted September 6, 2018 Share Posted September 6, 2018 (edited) My 28 has an adjustment screw on it and it needs calibrating. This requires taking the housing off the speedometer. The screw changes the distance between the gauge face and the magnet that drives it. If I get around to it, I will GPS my speed and have a helper adjust the speedo while we drive. I don't know what style speedo you have, but this is the style I'm referring to Edited September 6, 2018 by David_Leech (see edit history) 2 Link to comment Share on other sites More sharing options...
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