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  1. #1
    Bobtail Member
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    how to drive an 18 speed

    Hi all,

    I just bought a kenworth t660 18 speed, 500 hp cummins isx, 1850 torque, and 3.55 rear end ratio.

    Could you all chime in and give me some tips on how to drive an 18 speed the right way?

    some of the questions that i have are:

    1) with the above specs, what gears should I use for starting up (with a light load / with a heavy load).

    2) when I'm going up the mountains (with a light load / with a heavy load).


    I understand that the gears depend on the how much weigh you carry and if the truck have enough power to pull it, so it's hard to give a precise answer for this and I will have to get a feel for it when i'm driving. I just wanted to know what to expect. If you could generally say what gear range I should expect to be in in different situation that would be great.

  2. #2
    Light Load Member
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    [YT="Video"]sM-kcFxsyCk[/YT]

    And apparently you need to be barefoot
    Last edited by WiseOne; 07.18.2008 at 06.24 AM. Reason:: Fixed YouTube

  3. The Following User Says Thank You to Eric the Red For This Useful Post:


  4. #3
    Light Load Member SPIKE 64's Avatar
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    Quote Originally Posted by Eric the Red View Post

    And apparently you need to be barefoot
    AW HELL, I knew i was doing wrong,need to remove shoes next time! HAHAHA!!
    Last edited by WiseOne; 07.18.2008 at 06.24 AM. Reason:: Fixed YouTube

  5. #4
    Trucker Forum STAFF Brickman's Avatar
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    Kenworth if you've ever driven a 13 speed then not much has changed. I wouldn't bother splitting the low gears unless you really need them for starting out on a hill or going slow across rough terrain.

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  7. #5
    Light Load Member SPIKE 64's Avatar
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    Hey Wise One,The U-Tube video is no longer available,try this one,Brickman's right I wouldnt split the low gears either unless you need to. http://www.youtube.com/watch?v=VTsDPWVL9kE
    Last edited by SPIKE 64; 07.18.2008 at 08.27 AM.

  8. #6
    Trucker Forum STAFF Brickman's Avatar
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    Its not Wise's fault. Some one removed the vid from YouTube.

  9. #7
    Heavy Load Member 2fuzy's Avatar
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    can't tell you how could show you in 5min but now that you have one 10s will suck from now on