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Old 02-19-2012, 05:19 PM   #2
Wrenchbender Ret
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Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
Re: speedo question

1000 revs per mile is the standard. Take out the 19 tooth & put in a 21 tooth. Then compare the odometer reading to the mile markers on the freeway. If it looses tenths put in put in a gear with less teeth. If it gains put in a gear with more teeth. If you are not near a freeway mark out 2 miles using a late model vehicle you know is right. Like from the oak tree in front of the smiths to the light pole by the church.
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