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Old 11-19-2007, 08:48 PM
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Determining a decent ratio

I am putting a new driveline in my 37 chevy p/u,I am retaining the 235 but installing a S10 5 speed and modern rear end. The 5 speed has a 4 to 1 first gear and in 5th the output shaft turns 1 1/3 to one revolution of the input shaft so it looks like there is not much overdrive,I was wanting to use 3.73 gears but with the 4 to 1 first gear it looks like a little taller gear will be needed. It has 235/75 tires on the rear so would a 3.25 to 3.55 gears be a decent choice for what I have. Jeff
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