Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - TH350 speedo gear color
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Old 12-11-2004, 09:55 PM
jimfulco jimfulco is offline
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I suspect it wasn't right to start with. Go to http://novaresource.org/speedo.htm , and plug your tire diameter & gear ratio figures into the formula, then pick a speedo gear combo that gives you the proper ratio.

I just did it & it looks like an 8-tooth drive gear with your 21-tooth driven gear would work.
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