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fatso2114
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-- 04-16-2019 @ 4:32 PM
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Hello, want to put over drive in my 50 ford was wondering if I need a different drive shaft ( length) or can I use the same one in the over drive trans mission thanks for the help,John
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JT Ford
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-- 04-17-2019 @ 6:50 AM
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No problem with the driveshaft. It will work with Std. tranny or OD.
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fatso2114
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-- 04-17-2019 @ 8:52 AM
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Thanks JT ford for the info great help,John
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supereal
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-- 04-21-2019 @ 11:30 AM
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Determine the rear end gearing as it will determine the shift point of the OD, and will affect operation of the car.
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JT Ford
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-- 04-22-2019 @ 11:29 AM
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What difference does the rear end have to do with the operation???
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carcrazy
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-- 04-22-2019 @ 1:19 PM
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The ratio of the rear axle will have a minimal effect upon the operation of the overdrive. The overdrive operation is controlled by a governor located on the transmission. Approximate vehicle speed for the overdrive to engage is 27 MPH once the accelerator pedal is released. When the car is slowing down in overdrive as the speed drops below 21 MPH the car will return to direct drive. These speeds were determined with the as build final drive ratio. If the rear axle is changed and the ratio is not too far from the ratio for which the overdrive unit was calibrated, the O/D engagement and cut out points will only differ by a couple of MPH.
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40cpe
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-- 04-22-2019 @ 3:22 PM
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As far as i know, 3.78 and 4.11 were the ratios offered in '50. I put an overdrive in a 3.78 ratio car and it performed/operated flawlessly. As said above, it won't make any difference.
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