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Old 08-18-2020, 02:22 PM   #1
springerpete
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Join Date: Jul 2012
Location: Central Maine
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Default 3.78 vs 3.54 rear end and speedometer/miles

I have to replace ring gear in my roadster. Presently it is stock which I think is 3.78. If I put in a 3.54 gear & pinion, how will this change the mph and odometer reading ? Thanks, Bill
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