Originally Posted by fireboat
3 yrs of event tire wear on my trailer. Then all of sudden the outside edge of one tire started to wear. I must have hit a bad bump or hole in the road. The axle had moved back about 1/8th of an inch on one side. I measured from the rear of the frame to the spring support, made both sides the same. Now the tires are wearing even again. The axle needs to be perpendicular to the frame.
And the axles need to be parallel with each other.