Originally Posted by 32vld
Assuming his trailer is rated for 7,000 lbs, he can unevenly load his trailer to the point that he can exceed the rated axle weight of 3,500 lbs by having too much weight on the front or too much weight towards the rear of the trailer.
In theory, maybe. In reality your trailer will not handle well at all. Besides tandem axles are close together and weight is bridged out.