Removing drive shaft for better fuel economy..

Discussion in 'Ask An Owner Operator' started by joseph1853, Sep 5, 2021.

  1. not4hire

    not4hire Road Train Member

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    When I want to increase fuel economy I just call a tow truck.
     
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  3. joseph1853

    joseph1853 Heavy Load Member

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    lol.
     
  4. Rideandrepair

    Rideandrepair Road Train Member

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    What you’re describing is a tag axle. Basically a single axle Truck with an extra axle on the rear. Holland used to run them. The idea is to save fuel and tire wear. Still be able to scale Heavier loads when needed. They used to run like hell through the snow and ice, with the tag axle up, having the extra weight on the single drive, gave them better traction. Works great, till it doesn’t. Just a way to save money, specing a Truck.
     
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  5. ProfessionalNoticer

    ProfessionalNoticer Medium Load Member

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    Maybe they run different types of suspensions? I've gotten stuck with single axle day cabs many times on the dumbest things like ice, mud and small slopes. It happens with my tandem too but a simple flick of the power divider switch on the dash gets me out every time.
     
    Last edited: Sep 6, 2021
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  6. ProfessionalNoticer

    ProfessionalNoticer Medium Load Member

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    Why do the tires on the back axle wear down faster than the front of the tandem?
     
  7. bavarian

    bavarian Medium Load Member

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    You sound like you've learned something. There ain't many of that kind.
     
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  8. GYPSY65

    GYPSY65 Heavy Load Member

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    Do you get a fuel discount where you are at?
    If not, look into getting one like NASTC
    It will save you a significant amount on fuel
     
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  9. Lyle H

    Lyle H Heavy Load Member

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    Because of the increased scrubbing effect on the rear axle when turning.
     
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  10. lester

    lester Road Train Member

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    I am not positive but I believe the right rear will always wear the worst. Has to do with the flow of power through the rear axles. Right rear will be the one that wants to spin first.. in my experience anyway.
     
  11. TallJoe

    TallJoe Road Train Member

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    Volvos from 1998-2003 were vulnerable to lose that shaft. I lost it twice myself, on two different trucks. Some removed it but not so much for fuel economy but for savings in repairs.
    I want to have it. On some occasions, I was hanging on a bump and during winter on a slick spot, sometimes at a dock where its driveway grade was awkward, it did help to move out. The idea to remove it in order to gain mpg is not very good.
     
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