Has anyone ever had to replace an axle on a tandem axle trailer? I have the front passenger side tire on my dual axle trailer that is wearing tread on the outside edge of the tire. Just replaced the tires and after about 800 miles the outside edge of tread is already worn smooth. That's the only tire wearing and all I can think is the axle must be bent. It's a trailer for a 2000 21 SS Extreme.