The 300cx loader is capable of 3rd function hydraulics it is the tractor that is lacking with multiple functions. This could be handled with the use of a diverter valve (electical would be handiest) so that you push a switch or button to toggle from dump function to grapple function. The other downside would be the additional weight of the bucket attatchment with a grapple on the 4105 wich does not have near the
hyd capacity that the 4000 20 series tractors do (12
gpm approx on 20 series) nor the higher end lifting capacity of the 400 series loaders.