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Speedometer Calibration???

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Speedometer Calibration???

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#1

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10-14-2016, 09:10 PM

catfishjoe

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Speedometer Calibration???

My 2006 Laramie Ram 1500 Hemi came stock with 17" wheels. I replaced them with 20" Ram wheels and tires from a 2009 Sport. Looks good, performs good, but spedo is off. Will it take a computer "flash" to correct this or what?

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#2

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10-14-2016, 09:27 PM

jkeaton

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Dealer flash or purchase a tuner.

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#3

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10-16-2016, 08:50 PM

MikeHTally

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Or just live with it. Mine is 4.2% low with 285/70x17s. When I'm driving, I just know that indicated 76 is actually 80. I also factor that in when calculating mileage.

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#4

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10-17-2016, 10:30 AM

HemiLonestar

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Also means your odometer is off.

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#5

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10-17-2016, 06:52 PM

catfishjoe

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Thanks for the input.

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