Forum Discussion

4huskers's avatar
4huskers
Explorer
May 25, 2014

New Tow Vehicle

Bought a 2014 F250 2wd yesterday with the camper package; it has a 3:31 rear-end which I thought was a high ratio for towing. The sales person showed me Ford information showing towing specs with the 3:31 rear-end. I'm assuming the combination of the 6.7 diesel and 6 speed transmission along with 18" instead of 20" wheels compensates for the higher gear ratio. Our 5th wheel is around 12K gross. Also at what RPM do you 6.7 owners tow?
Tow Vehicles
  • Winged_One's avatar
    Winged_One
    Explorer
    May 26, 2014
    From all the positive responses from those with the same setup, looks like your good to go.

    Enjoy the new truck!
  • alexleblanc's avatar
    alexleblanc
    Explorer
    May 26, 2014
    my F250 has the 6.7/3.31 with 18" wheels/tires and it puts me right around 2000rpm towing around 60mph or so. There's a never ending amount of small hills here locally and the truck pulls most of them in 6th and sometimes drops into 5th. You'll be happy with the pulling power of the 6.7 with that gear ratio - FWIW i'm towing roughly 10k lbs and wouldn't think twice about 12-13k lbs with the same truck.
  • lawrosa's avatar
    lawrosa
    Explorer
    May 26, 2014
    dont know what cab you have... but your truck comes with 3:31 or 3:55. They both haul the same 16100 to 16800 lbs....

    Its the tongue weight (payload) you should be concerned with...

    Your looking at 3400 - 4100 lbs....

    Geez man!!!! 800 ft lbs of torque at 1600 rpms.... You are ready for the rockys....LOL..
  • Helmsey's avatar
    Helmsey
    Explorer
    May 25, 2014
    When we are towing I generally have the cruise set just under 65MPH and that puts me right at 2000RPMs. Its a happy spot for our setup.
  • rjstractor's avatar
    rjstractor
    Nomad
    May 25, 2014
    Don't focus on just the 3.31 rear axle ratio. There are many more factors in play, like engine power and torque, tire diameter and transmission ratios to name a few. There are semi trucks with 2.93 rear axle ratios moving 80K+ all over the country. With the amount of engine power and torque you have, a 12K fiver should be child's play for your truck, even with a 3.31 rear axle ratio.
  • BB_TX's avatar
    BB_TX
    Nomad
    May 25, 2014
    I have a 2012 F350 6.7 4x4 3.55 20" wheels and about the same weight 5er. Tows it great even over Colorado mountain passes.
    On open relatively flat highway it rarely shifts out of OD and tachs about 1,700 rpm at 65-70 mph.
  • Need-A-Vacation's avatar
    Need-A-Vacation
    Explorer
    May 25, 2014
    Congrats on the new beast!

    Usually the tires are the same overall, so wheel diameter doesn't matter other than for weight rating- for my '13 Chevy you could get 18" or 20" wheels for the 2500, but the 3500, 20's weren't an option, I think due to the rim/tire weight capacity.

    Enjoy the new truck!

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