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  1. IM

    Cummins N-14 - Gear Ratios

    geofkaye The answers in the order asked: 1) Yes I have 2) Yes we do 3) No it isn't Chuck
  2. IM

    Cummins N-14 - Gear Ratios

    Thanks for the input. Changing wheels and tires isn't really an option for me at this time. I have polished rims and good tires. I'm going to run it that way. As far as a gear ratio change. It's the cost of the ring and pinion and bearings/seals if required - I'll provide the labor. What...
  3. IM

    Cummins N-14 - Gear Ratios

    Hi – I'd like to get some input and opinions on a Cummins N-14. I have a 2001 Century Single axle with a 370 HP N14, 10 speed (.74 OD), 3.91 rear gear, 22.5 tire. According to my GPS the motor turns 1550 at 60 MPH and 1650 at 65 MPH. I tow a 36 foot gooseneck car trailer. The trailer weighs...

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