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Old 03-17-2012, 08:03 PM
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Speedo ?

Would one need a speedo gear if changing the tires from 30" to 32"?
Where do you find out the gear ratio? No idea.
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Old 03-17-2012, 09:00 PM   #2
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not a big change,
but yes. for accuracy if your picky.

type your question in your favorite browser and you will get lots of answers.

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Old 03-17-2012, 09:58 PM   #3

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I clocked mine after adding 32" tires with me new lift. When I was at 70, GPS said 74 I believe. Changed out to a 32 tooth gear 70 on the speedometer is 69.6 on GPS. But then again, I'm anal like that. I have to know Exactly how many miles I get out of a tank amongst other things.

$44.98 through our quadratec guy here.
"And then one day you find
Ten years have got behind you
No one told you when to run
You missed the starting gun"
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Old 03-18-2012, 08:11 AM   #4
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I guess results will vary with all tire manufacturers having a different definition of exactly what 32" is

When I was running 32's, I checked the speedo against a GPS and couldn't tell the difference.
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