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Old May 14, 2012 | 08:40 AM
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eco boost gearing
Can you get 3.31 gears in a 4x4 crew cab F150
 
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Old May 14, 2012 | 08:56 AM
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I believe so if you get the regular open diff axle.
 
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Old May 14, 2012 | 09:05 AM
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Originally Posted by jwhitetail
Can you get 3.31 gears in a 4x4 crew cab F150
Originally Posted by TheWhiteBeast
I believe so if you get the regular open diff axle.
That is my exact set-up. Power out the wazoo and great gas mileage too.
 
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Old May 14, 2012 | 09:49 AM
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I would do it if th 3.31 was a locker or at least limited slip. What kind of mileage are you seeing?
 
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Old May 14, 2012 | 10:14 AM
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Originally Posted by TheWhiteBeast
I would do it if th 3.31 was a locker or at least limited slip. What kind of mileage are you seeing?
In the warmer months here in Va, March - November, I'm easily getting 19 mixed and 23+ on the highway at 70-75.

Colder months everything drops by about 2 mpg's.
 
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Old May 14, 2012 | 11:00 AM
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Thanks guys, i found some trucks with 3.31 a they are open diffs. I am looking for my son. I hang out on the 7.3 forum. Thanks again.
 
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