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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

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Old Feb 16, 2015 | 04:13 PM
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Nirai Taiapa's Avatar
Nirai Taiapa
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Question Rev settings
My 55 f100 has a 351 clevo ,and a 44dana rear end .At 68mph it's rev's at 3.500rpm .any help appreciated
 
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Old Feb 16, 2015 | 04:16 PM
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What trans do you have?
 
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Old Feb 16, 2015 | 04:22 PM
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It's a 3 speed c6
 
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Old Feb 16, 2015 | 04:39 PM
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So from the info I have you must be running a 28" tire and about a 4.56 rear gear ratio. Only what to lower your rpm at 60 would be to put in some 3.73 or 3.55.
 
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