Mounting Generator

For every pound you add to the rear of the trailer you will remove some weight from the pin/tongue and add it to the axles. Example, if the axles were perfectly in the center of the trailer, you add 200 pounds to the rear, you will remove 200 pounds from the hitch and transfer it to the axles for a net gain of 400 pounds. In your case, you will add at least 420 pounds to the axles, just for the generator. By the time you add your full gas tank and the structure to hold all this; you will be closer to 600 pounds of added weight and nearly 1200 pounds to the axles. Think of it like a balance beam scale or teeter totter. With out knowing the distance from the hitch to the center of suspension and the distance from center of suspension to the rear of the trailer with the addition, it is only an approximation of how much weight you will remove from the hitch. But what is certain, is for every pound you add to the rear, you will have twice as much added to the suspension.