I just noticed that my 1 1/2 yr. old boat trailer (galvanized bass tracker
jet boat trailer) is showing no tread wear on the port side, yet the tire on
the starboard side is horribly worn, especially along the outside edge. I
estimate it has 1,500 miles on it at most.

At first glance it does not look like I can adjust the axle.

Can anyone provide some advice before I call the dealer. It's out of
warranty.

Rick