I am running Goodyear Marathons (raidals) on my Diamond City aluminum trailer. I am noticing some uneven wear on my (passenger side) tire. It's not the air pressure as I continuously check my tires ensuring 50 psi. My trailer feels as if it pulls true and has no problem at speed (up to 80mph) if need be. I don't know for sure how many miles I have on them, but would venture to think it is between 5,000-10,000 miles. The other tire is wearing even.

Are you guys rotating your trailer tires? If there is something slightly out of alignment with my trailer axle what is the best way to confirm if this is an issue or not? -kind of like aligning a front end of a car? Is there going to be some uneven wear regardless? I wouldn't think so.

Thanks in advance.

Marathons need to be balanced because they are a radial. That could be part of your problem.