Axle upgrade?

I agree. After going through the expense of having to change them myself, that will be something I will look very closely at before buying another one. The manufacturers subtract the tounge weight when calculating the suspension weight requirements. This allows them to use cheaper components. When I weighed my camper the weight was the same with just the trailer wheels sitting on the scale with the TV off the scale, as it did unhitched with the full tounge weight and wheel weight on the scale. That tells me that the suspension should be rated to take the full weight of the trailer or a higher weight, not less. When you hit a bridge joint or road deformity at highway speed the full weight of that trailer is sitting on the suspension components. If they are not strong enough to handle all of that weight then things will bend or break as some of us have unfortunately found out the hard way.