3:31 or 3:55
Probably going to buy 2013 F150 Crew Cab 4x4 w Ecoboost. Dealership has 2 that are priced about the same, but the one with more options only has 3:31 axle ratio......Other one with less options has 3...
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I have used my F350 with the 3.55 gears for hauling trailers over 30,000 lbs fairly regularly and have absolutely no regrets. If I was only going to be towing trailers up to 15,000 lbs or so I would want the 3.31 gears. Guys with the 3.31 gears are getting better fuel mileage than what I can get with mine. To put things into perspective the Ford 6.7 in low gear with the 3.55 rear end is capable of putting more torque to the rear axle than what two 2004 Cummins 5.9's hooked in tandem would be able to do with 4.10 gears.
