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Old 05-18-2019, 03:45 PM   #1
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interesting comments from U-Haul

The following is from U-Haul's towing instructions:

Other Hitch Systems
Weight distributing or sway control devices ARE NOT USED <U-Haul's emphasis> for towing U-Haul trailers. Towing a properly loaded U-Haul trailer does not require these devices. These devices may have a negative effect on vehicle handling and braking and may restrict the operation of the trailer coupling mechanism.

Your tow vehicle
For occasional towing, your vehicle, when properly equipped, can tow any recommended U-Haul trailer, if the loaded weight of the trailer does not exceed your vehicleís curb (empty) weight. Your vehicle can also tow any U-Haul trailer equipped with brakes, provided the curb weight of your tow vehicle is at least 80% of the loaded weight of the braked trailer.
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Old 05-18-2019, 03:48 PM   #2
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Originally Posted by out of sight View Post
The following is from U-Haul's towing instructions:

Other Hitch Systems
Weight distributing or sway control devices ARE NOT USED <U-Haul's emphasis> for towing U-Haul trailers. Towing a properly loaded U-Haul trailer does not require these devices. These devices may have a negative effect on vehicle handling and braking and may restrict the operation of the trailer coupling mechanism.

Your tow vehicle
For occasional towing, your vehicle, when properly equipped, can tow any recommended U-Haul trailer, if the loaded weight of the trailer does not exceed your vehicleís curb (empty) weight. Your vehicle can also tow any U-Haul trailer equipped with brakes, provided the curb weight of your tow vehicle is at least 80% of the loaded weight of the braked trailer.
Not unusual. Uhaul has surge brakes, and as such, is incompatible with WD.
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Old 05-18-2019, 03:49 PM   #3
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You are correct U-Haul trailers are engineered and designed differently there by they request no use of these weight distribution anti-sway devices.
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Old 05-18-2019, 04:03 PM   #4
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Originally Posted by out of sight View Post
The following is from U-Haul's towing instructions:

<snip>
Good advice not to use WD equipment on an Airstream trailer, just so long as the user removes the electric trailer brakes from their Airstream and installs surge brakes in their place. Check if they are legal in your jurisdiction, they aren’t legal everywhere for trailers that weigh what an Airstream does. Also, make sure to pick up the 45 mph or 55 mph maximum speed decals from U Haul and install them on the Airstream. Finally, U Haul promotes the need for additional towing insurance for every trip for their trailers.

Or, one could read Airstream’s recommendations and just tow with WD equipment, properly set up.
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Old 05-18-2019, 05:02 PM   #5
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The following is from U-Haul's director of engineering:

“I’ll give you an example: You have a trailer loaded improperly and the critical speed is 65 mph and you’re approaching that speed. The sway-control device is actually going to help eliminate those minor sways as you get close to speed, but once you get to 65 mph, it’s still going to go unstable. So it’s not going to correct the incorrect trailer loading. It actually might mask it so you don’t get a warning that you’re coming up on a bad condition.”
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Old 05-18-2019, 05:03 PM   #6
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The following is from U-Haul's director of engineering:

ďIíll give you an example: You have a trailer loaded improperly and the critical speed is 65 mph and youíre approaching that speed. The sway-control device is actually going to help eliminate those minor sways as you get close to speed, but once you get to 65 mph, itís still going to go unstable. So itís not going to correct the incorrect trailer loading. It actually might mask it so you donít get a warning that youíre coming up on a bad condition.Ē
Of course, what's your point? We've discussed proper loading adnauseum over the years.
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Old 05-18-2019, 05:40 PM   #7
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Of course, what's your point? We've discussed proper loading adnauseum over the years.
The point that he's making and that you're missing is that sway control hitches can mask what's going on with your trailer and that it may be safer just towing on the ball.
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Old 05-18-2019, 05:51 PM   #8
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The point that he's making and that you're missing is that sway control hitches can mask what's going on with your trailer and that it may be safer just towing on the ball.
According to the company that supplies trailers that cannot use WD equipment due to their design.

U Haul have only two levers to pull to manage sway issues. Loading, and speed. Loading matters for all trailers, it isnít unique to U Haul. They address speed with low speed limits for their trailers.

Then they mitigate the risk by selling expensive insurance products.

I donít fault them as they canít use WD and sway dampening equipment.

With other trailer designs, we have a choice.
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Old 05-18-2019, 06:43 PM   #9
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The point that he's making and that you're missing is that sway control hitches can mask what's going on with your trailer and that it may be safer just towing on the ball.
Yeah, no he's not.
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Old 05-18-2019, 07:36 PM   #10
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You can find about 5 pages of recent Air Forum discussion of the same topic here: http://www.airforums.com/forums/f464...ed-193506.html

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Old 05-19-2019, 09:57 AM   #11
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Somewhat related, but does U-Haul install sway control or WD hitch systems, even though they do not allow on their own trailers? Wondered in case i’m On the road and have an immediate hitch problem they could solve.
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Old 05-19-2019, 11:45 AM   #12
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Originally Posted by out of sight View Post
The following is from U-Haul's director of engineering:

ďIíll give you an example: You have a trailer loaded improperly and the critical speed is 65 mph and youíre approaching that speed. The sway-control device is actually going to help eliminate those minor sways as you get close to speed, but once you get to 65 mph, itís still going to go unstable. So itís not going to correct the incorrect trailer loading. It actually might mask it so you donít get a warning that youíre coming up on a bad condition.Ē
He is correct in that sway should be resolved first and foremost by fixing the design and/or loading issues with the trailer not with the sway control on a WDH. They blame the hitch and the TV but the root cause is the trailer.
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Old 05-19-2019, 11:47 AM   #13
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Somewhat related, but does U-Haul install sway control or WD hitch systems, even though they do not allow on their own trailers? Wondered in case iím On the road and have an immediate hitch problem they could solve.
Yes.

https://www.uhaul.com/MovingSupplies...-Distribution/
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Old 05-19-2019, 12:14 PM   #14
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The point that he's making and that you're missing is that sway control hitches can mask what's going on with your trailer and that it may be safer just towing on the ball.
Exactly what is my anti-sway control hitch masking?? Trailer Sway? Because if it is, it's doing exactly what I want, and what it is designed to do. I towed my AS on the ball to my RV dealer at 55mph, with my anti-sway WD hitch in the pickup bed. Crosswinds were creating sway during the drive. I dropped both truck and AS off. The owner installed and tuned the WD hitch later that afternoon for my specific TV and Airstream. Going home, crosswinds were significantly increased, yet not any hint of sway at 65mph during the drive home. My newly installed anti-sway WD hitch, masked and fully attenuated sway on the drive home.
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