I need help with my 5 car hauler swaying

Discussion in 'Car Hauler and Auto Carrier Trucking Forum' started by Royalllc, Feb 16, 2021.

  1. Royalllc

    Royalllc Bobtail Member

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    Feb 16, 2021
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    3FA66E95-F2A9-49AC-A011-BE69692B4CEC.jpeg 03CFD864-5DB8-4623-A3AA-4DF901E0B387.jpeg EBE9DAD7-FFF3-473E-B38C-BFF83083FA87.jpeg Hi.My name is Kay from CT.l’m new to this platform.l own a 5 pack car hauler 08 peterbilt 340 class B.l have a little problem and a friend suggested I join this platform,there are good experience people here that can help.My problem is,sometimes when I load the truck,it sways a lot especially when I put an suv on top of the cab,to a pointy that I can only do 40 miles per hour to stop it a bit.l have change front shocks and few other things and it’s still does the same thing.When l load just cars I do t fell it much.Any ideas??This is a picture of it loaded.Please help.Thanks
     
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  3. AModelCat

    AModelCat Road Train Member

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    What have you got for rear suspension?
     
  4. Royalllc

    Royalllc Bobtail Member

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    Feb 16, 2021
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    Thanks for the response.l have air suspension in the rear
     
  5. Lucky12

    Lucky12 Light Load Member

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    Your center of gravity is getting too high. Be careful because you might lay it over.
     
  6. Lucky12

    Lucky12 Light Load Member

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    Also, look at the wheelbase distance on your rig vs the amount of cantilever (overhang) both front and rear. Ideally you would load the higher center of gravity vehicles on the bottom if possible.
     
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  7. Hammer166

    Hammer166 Crusty Information Officer

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    Also, make sure you keep the weight as far back as possible. It's quite likely the steer is overloaded, what your describing is exactly what happens with a stinger if you drop the trailer while loaded. A block to the shop was too far, it was like driving a boxcar.
     
  8. Saltyoldone

    Saltyoldone Light Load Member

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    A 5500lbs suv over the front wheels will make any rollback unstable. (and over 14’ tall)

    I can only load something under 3000lbs up there and I’ll still drive 45 or less
     
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  9. AModelCat

    AModelCat Road Train Member

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    Air ride isn't doing you any favours with high center of gravity loads.
     
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  10. jamespmack

    jamespmack Road Train Member

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    Might be worth weighing each axle to see if your overloading a axle.
     
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  11. Flint1

    Flint1 Medium Load Member

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    4 mid size + SUVs and a minivan, I'd suspect an overload. Scale it to be sure before someone else does it for you.
     
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