Hi Builder,
I put a Putnam XDR on the truck, the stock one is too wimpy, (even dangerous). With the tractor loaded on the trailer, I use a weight distribution hitch. With lighter stuff, (such as a load of firewood, etc), I don't need the WD hitch and just use the normal 2 5/16 ball. I don't use a ball/pintle at all. After having experience with a WD hitch, I would recommend using one. Big difference in ride, trailer/truck rides level, and better steering, (more weight shifted to the truck's front tires).