Thread: speedo help
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Old 11-08-2014, 09:40 PM   #2
hugger6933
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Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,280
Re: speedo help

You need to know the tire height and the rear gear ratio. Then there is a table on the web, maybe one on here as much stuff that is here wouldn't be shocked,it will tell you the tooth count needed for correct speedo reading [and color] for the drive gear[output shaft] and driven gear[speedo "bullet" some call it ] it is the cable end that into the trans. Now it is possible if the gears are close, you can change just the driven gear and not the drive to obtain proper tooth count. That would be the best hope that way you don't have to remove the driveshaft and rear tail shaft housing.
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