I had a generator customer come to me wanting a custom trailer mounted generator,he just wanted to tow it from his garage to the house during an outage..he brought me a Polar HD Poly dump trailer,brand new..said he wanted me to use the axle and wheels to make him a generator trailer,and scrap the rest.So I did..I was left with the poly tub..I made a new dump frame for it and remounted the tub on my frame and axle..seems to work great for cutting firewood,low sides on it. I made a long enough tongue so I can tow it with either a 4-wheeler or my golf car..light enough yet heavy duty..worked out OK