Andersen wdh

I have air bags on my Tundra and use them for weight distribution.  I use the Andersen hitch sway mechanism alone and it works very well.

+1 to Lostagain. Airbags do not distribute weight at all. They can only restore the sag caused by the weight of the trailer tongue on the rear of the tow vehicle. A WDH can reduce the weight on the rear axle of the tow vehicle and transfer some of that load to the tow vehicle front axle and some to the trailer.

There is really no reason to be concerned about using a wdh on a unibody SUV. Unibody construction is very strong on an SUV because it uses the C and D pillars of the SUV roof to create a truss structure, making for a strong stiff body. If you’re going to worry about unibody construction then you should also worry about the truss roof falling on you in a big box store or a truss structure bridge collapsing when you drive over it.

Pickups don’t really benefit much from unibody construction because they don’t have the c and d pillars to tie into the roof structure. Thats likely why there is only one unibody pickup on the market, the Honda Ridgeline.

The key point is to know what your tv vehicle design specs are and stay well within those, regardless of whether it is unibody or body on frame. If the vehicle is not rated for wdh use, don’t, and don’t exceed the tongue, max tow and combine vehicle weight ratings either.