Adjusting spedometer for accuracy?

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Oct 4, 2009 | 07:30 AM
  #1  
Is it possible to adjust the spedometer for accuracy?
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Oct 4, 2009 | 09:15 AM
  #2  
I can't speak for the SC430 speedometer but generally speedometers can be. If a different sized tire is installed on a car, the speedometer will no longer reflect the accurate speed of the car because its measurement reference is wrong. I know that they make adjustments on heavy duty trucks all the time.
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