most of tractor weight should be positioned over the drive axles. in the case of 2wd tractors, the font axle must carry enough weight to provide steering control and stability. fwa tractor require more weight than 2wd tractors on the front axle to provide traction for the powered front wheels. true 4wd tractors should have equal amounts of weight on both drive axles while operating under load. because of the table below lists the recommended weight distributions for various tractor configurations.