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Old 06-01-2016, 01:15 PM   #1
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Join Date: Jul 2015
Location: Mobile, AL
Posts: 198
Super Duty gearing.

When considering a Ford Super Duty 6.7L diesel;
3.31 gears VS 3.55.
Any significant differences?

Would be tow vehicle and daily driver.
Pulling 36ft TT roughly 10k weight.

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Old 06-01-2016, 01:27 PM   #2
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I am also interested in hearing feedback from others on this

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Old 06-01-2016, 04:19 PM   #3
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I have the 3.31 but I would think that for towing the 3.55 would be better. Good Luck
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Old 06-01-2016, 08:21 PM   #4
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For towing, I'd go with the 3.55. For something that will never see a trailer and just cruise the highways because you just wanted a diesel, 3.31 all the way. If you're gonna use it like a truck, lower is better.
2013 F350 dually
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2015 Nights camped 15
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