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1957 - 1960 F100 & Larger F-Series Trucks Discuss the Box Style Ford Trucks

Speedo gear Question

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Old Jul 27, 2012 | 09:24 PM
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Speedo gear Question

I have a 59 f1 with a 223 and 3 speed and I changed the axle ratio from 3.70 to 3.25 and I need to know what tooth speedo gear to use thanks
 
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Old Jul 28, 2012 | 10:18 AM
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Idrive, welcome to the forum. Your question is not as straight forward as you might think. 59 F100's didn't offer a 3.25 differential and if your truck is riding on different sized tires from stock, then you will need to consider that also.
Good luck in your quest.
 
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