I bought a BX2360 in the spring, I got a ballast box with it which I haven't used because I used my box scraper as ballast. I decided I wanted to use the box as its less bulky and I hooked it up to the tractor, only problem is that I don't think its the correct one for the tractor. The model number on the box is B5320 and the issue I have with it is the three point hitch won't lower far enough to drop it on the ground...at its lowest position its like 6" above ground level and now its empty but when I have concrete in it that will be a huge issue. Is this just how ballast boxes are or did they give me the wrong one?