Or are they a  throw away type deal?  
I have a  tire that's wearing badly on one side,  and you can see that  it's  toe'd out by about an inch.    Putting a  wood fence post between the  tires  and prying  i can get about  half inch 'play' in the rubber torsion..  (front tire)  where the  rear tire is rock solid.   
Just eyeballing down the  sides of the tires  shows  a fair amount of toe out  when trailer is  not moving.   I'd say it's all slop in the rubber torsion part.

These are  just  7k axles,     and  the trailer is about halfway home to the  crusher.   
2 schools of thought here..   replace (if it's  not  fixable)  that axle with similar  axle... and run it until next  badger hole jumps in front of me..

or upgrade to   say,  10k torsion,  and  built a  cradle that  would  allow those high priced axles to be  transferred more easily  to the next  new trailer(s)   

Dang it..  why do  trailer mfg's  make a trailer that can  hold 10, 1300 lb cows,  comfortably,   only to  put   14k  worth of axles under it?