Change 3.31 to 3.55 or 3.73

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Jun 19, 2015 | 06:30 PM

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Joined: May 2015

Posts: 6

Change 3.31 to 3.55 or 3.73

Just bought 2014 F-150 with 3.5L Ecoboost. The rear end is 3.31. Can it be changed out to a 3.55 or 3.73 to improve towing torque? Towing about 6500 lbs.

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