Added some ballast to the new JD 4310... it is one of two suitcase weights I have from my old Oliver OC-46 crawler tractor. Each one is around 26" x 18" x 4" thick and weighs 400 lbs! It's thin enough I can still use the 3 point pallet forks, which I keep on all the time because they are so useful... can't lift as high as the front forks, but they are way more stable moving pallets of stuff around.