Just noticed one of my front tires is almost bald on the inside(only about 2" from the inside worn) when the outside is probably 70% tread, went to the other side and the same thing. Any idea of what would cause this. Thinking i may have to much weight forward...either boat forward on trailer or tongue too low forcing forward weight. I really can't get much taller with tongue as my jack is already maxed out just to get under the trailer. Any one else ever seen this issue?