I for one have never been too impressed with torsion-type axles. The 'torsion' part depends on the rubber mounting and IMHO is a very poor setup. I have built some trailers and worked in a trailer shop for a number of years, and as wmtire says- "there's not much you can do for a torsion axle that's wearing out tires" - there are no adjustments and really no way to repair them. I have the same problem except only on one tire. I have been thinking of putting a "real" axle and springs on our trailer, but haven't gotten around to checking on the cost. I can build the axle, and we have a local spring manufacturer that does custom work. It would also eliminate the lift kit that I've been thinking of putting on. I think I'll look into this some time this summer.
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