07-16-2017,
Some words about what I've experienced last days - four tires on the trailer's first axle had to be changed because of wear each of them different, strange at first point because half a year ago I changed the bushings, shocks and made alignment, the only and cheapest thing I forgot was to re-torque the bearings. Guess what, the nuts holding bearings in place was so loose that you could hand tighten them several revs. My advice is when you've spot a issue with your tires start from checking tires' pressure, bearings adjustment, alignment, shocks, and bushings last