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Old 01-24-2018, 06:26 PM   #1
Cadillac Kid
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Speedometer Re-Calibration After New Tires

Hello.

I recently went from the 235/75r15 tires that were on my truck to 31x10.50r15 tires. They are taller, and because of that my speedometer reads slower than the truck is actually going. I don't know what speedometer gear I need to change to. I'd think that someone has had this issue before after installing taller tires. Any guidance is appreciated.

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-Gavin
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Old 01-24-2018, 07:22 PM   #2
geezer#99
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Re: Speedometer Re-Calibration After New Tires

I always use a ratio adaptor to correct mine.
Look here for one.
https://transmissioncenter.net/
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