"Since the primary duty of a trailer tire is supporting a vertical load, rather than gripping an automobile through turns, trailer tires do not have to be dynamically balanced like passenger car tires do. Steering and cornering are less of a concern on a trailer tire than they are on an automotive tire."
I haven't balanced any of my trailer tires nor was ever asked to have it done by the tire shops. Is there a difference in a balanced tire? Asked this question, and read
multiple responses from tire manufacturers etc. Interesting.