Torsion Axles

My fifth wheel has torsion axles and I don't think they were specified for their smooth ride. It could be the engineers of your trailer wanted a low ride height or they needed the torsion axle as a structural cross member for the frame, both advantages of torsion axles. If you have tandem axles they are independent so there is no equalization between axles. Shocks are considered not necessary as the rubber cores are supposed to be self damping. As for wearing out, torsion axles have much longer life than hung axles as there is no metal to metal contact to grind and wear.

We had a problem with stuff falling out of cabinets with a lighter weight trailer with hung axles. We used tarp bungees with the plastic knob through the door handles to secure the doors to each other. problem solved.