I have replaced the original Trillium axle
, because it was decades old, and torsion axles do deteriorate, so I am told.
I just automatically upgraded to a 3500# axle, since I do tend to travel "heavy"
These trailer bounce a bit anyway, so, I am hoping that I have not created a problem for myself. With the torsion axle, I don't think that shocks are a possibility.