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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Speedo gear

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Old Dec 27, 2002 | 10:00 PM
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Speedo gear
I need a little help figuring out what speedo gear I need. I have a 352,T98,3.73 posi,and 255/70r15 tires. can anyone help?
 
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Old Dec 28, 2002 | 07:46 PM
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Speedo gear
Get someone to drive beside you at 60 mph. Check what speed your speedometer is showing. If you are showing fast..over 60 mph, you need to add teeth to your speedometer gear. If you show slow..below 60 mph, you need to decrease the number of teeth on your speedometer gear. In most cases, one tooth will change about 3 mph...
 
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Old Dec 29, 2002 | 12:03 AM
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Speedo gear
 
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