The owner manual specifies to use a heavy rear implement or weight box when using the loader in order to unload the front axle.
Bingo.
Same thing in Deere manuals. The tractor is way more stable with rear hitch weight also if you are loading heavy material, and doubly so if you are lifting to maximum height on anything other than level ground or have to turn to dump.
More weight you get on the back the safer it will be and the better it will be on the front gears. Weight sticking out the rear, pound for pound, is more beneficial than rignt at the rear wheels. Leverage particularly makes a difference on a short wheel base tractors. Our 4 cylinder tractors (various 5000 series Deeres over the years) were much better in loading applications involving lifting to height than the 3 cylinder because of the 6" longer wheelbase. But they also were not as manuverable in the barns.
