Question about Chevrolet Nova

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I have a 1970 Chevy Nova. The speedometer runs 15 miles low all the time. Do I just need to replace the speedometer cable or is there another problem? Thank you.

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  • ronnsuz Sep 07, 2010

    Fantastic!!!!! Thank you very much.

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Go to a chevy dealer and have the ratio of your rear axle on hand. they can get the correct speedometer gears for your transmission



count the teeth on the pinion and ring gears. if you have 41 teeth on the ring gear and 8 on the pinion gear your ratio would be 3.28

all you do is multiply the two numbers.

then the tire size is needed going by the current year that tires were manufactured for this car

Posted on Sep 03, 2010

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Posted on Jan 02, 2017

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