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changing Rear gears

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Old Oct 22, 2015 | 10:06 PM
  #1  
dohertycm's Avatar
dohertycm
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changing Rear gears

I have the FX2 Ecoboost 2014 edition with the locking L3 rear end....3.31 gears.
I would like to put the 3.73 gear set in...

Is this possible...?

Is it hard to do?

How with the speedo be affected?

Is this a common modification?
 
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Old Oct 23, 2015 | 05:28 AM
  #2  
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tseekins
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Are you planning to tow heavy?

Your MPG's will take a nose dive but the truck will be a rocket. There is a trade off. If you were to do this, i'd take the truck to a shop who specializes in such work. It seems to me as though a person who doesn't know what they are doing could grenade a rear end in no time with an improper install.
 
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