Regarding the effect of a counterweight on the 3 point hitch is well demonstrated with scales under the front and rear wheels in the Messick’s YouTube linked in post #3. You may have a valid question regarding my conclusion of the effect of increasing weight in/on the rear wheels. My belief is that in a static situation likely all weight below the rear axel does not increase load on either the front or rear axles, whereas rear wheel weight above the axel will increase load on the rear axel and likely have a small amount transferred to the front axel; similar to you sitting in driver's seat, where the majority of your weight would be borne by the rear axel, but some would be transferred to front axel. I can't see how weight directly on the rear axel would act as a fulcrum and unweight the front axel, but if you hang it off the rear of the tractor it does shift weight from the front to the rear axel. In a dynamic situation the movement of the liquid weight in the rear wheels may or may not change the weight distribution. I received a C and a B, respectively in 2 semesters of college physics and those grades were a gift because of the class curve so my conclusions may be wrong. Certainly welcome other thoughts.
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