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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Speedometer driven Gear

Old Nov 2, 2005 | 06:09 PM
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yellow72f100's Avatar
yellow72f100
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Speedometer driven Gear

How do I determine how many teeth my speedometer drive gear has? Furthermore, once I determine how many teeth I need on the driven gear, how do determine if I need a type 2, type 2A, or type 2B? Thanks y'all.
 
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Old Nov 2, 2005 | 06:52 PM
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go_racing84
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The drive gear will be determined by the type of transmission you have and its original application. Once you have that, google around for speedo gear calculators. There are several that can tell you exactly what gear you'll need based on transmission type, differential gearing, and tire size.
 
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