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Old 08-20-2011, 10:11 AM   #137
special-K
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Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,863
Re: "BIG" truck forum C/40, C/50, C/60 and the like...

I have a friend with a '59 REO that he installed a Cat 3208 in. The truck came with a V8 gas motor with a bit less torque and a bit less HP. The gearing was very deep,like between 5:1 and 6:1. He put in a rear with something like 3.54:1,which I didn't realize was even used in bigger trucks. He went from something like 6-7 mpg to 12.5 mpg and picked up something like 15 mph top end.
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Tim

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