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Old 10-19-2013, 06:51 AM   #43
Vintage Kin
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Corpus Christi , Texas
Join Date: Nov 2006
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The vehicle manufaturer requirement for WDH has nothing to do with trailer type. A tongue weight of from 350-500# meets the maximum rating for the hitch receiver when WDH is not used. Up to 1,500-lbs of TW when WDH is properly used. (See owners manual and/or hitch receiver manufacturer instructions for actual ratings for your vehicle).

TW is a measurement made under static conditions. But a roadgoing vehicle has exerted on it dynamic forces which increased the TW to thousands of pounds . . a giant hammer striking repeatedly. WDH spreads the TW across three points instead of one, and improves handling (tendency to yaw dimihished), braking (increased weight on trailer axles) and keeps the TV steering to a closer "feel" to the solo vehicle.

As to why others can't be bothered to read an owners manual or hitch receiver sticker is right up there with failing to inspect tires before a trip with the excavator, masonry supplies, etc. And I'd imaging they aren't making 2000-mile trips with those, are they? Or driving in all sorts of weather for extended periods, etc. One might aks those "friends" about the TW of the trailers, and how much weight is removed from the truck steer axle. Some may know . . . but most don't, in my experience.


1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 10-cpm solo, 18-cpm towing
Sold: Silver Streak Model 3411
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Old 10-19-2013, 07:28 AM   #44
Rivet Master
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2009 27' FB Flying Cloud
1991 35' Airstream 350
Siloam Springs , Arkansas
Join Date: Oct 2006
Posts: 1,490

You have asked a question that, as you can see, stirs up a lot of debate.

My ideas are these:

When towing a utility or equipment trailer, one can adjust the load on the trailer forward or back to manage tongue weight. With a little experience, one can "eyeball" the load the trailer is placing on the TV and fairly effectively place the load in the right spot to keep the truck and trailer stable.

I realize this does not transfer any of the load to the front axle of the TV, but it keeps most of the load centered over the trailer's axles and off the the truck entirely.

With RVs, weight is spread all over the place. Yes, we can place any loose items we decide to haul inside the trailer over the wheels. But, the furniture, walls, and such can't be moved to manage tongue weight. For the most part it is what it is.

Most of the equipment trailers towed by bumper hitch are shorter than the RVs we are speaking of. Longer over all length means more distance between the rear axle of the TV and the trailer axles. This can allow more sway, as the trailer is a longer "lever" against the hitch point. Sway control helps manage this.

I would also suggest that RV's are towed in a wider range of conditions. I don't see many backhoes and trailers full of lawn mowers running 65 (or more) mph down the interstate. Most are in less dynamic conditions than found when towing our RVs.

I tow my Airstream with a Reese dual cam system.

I tow my small farm tractor on a 14' utility trailer with nothing but a ball, but carefully centered over the trailer axles.



Jeff & Cindy
Hunter RIP

'09 27FB Flying Cloud
'91 350 LE MH
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