I had a similar problem with my Deere 318 a few weeks ago. I was aerating the lawn and had the aerator hanging off the back of the rear weight box, of course I removed the plow blade from the front. I went to turn and kept right on going!Driving the tractor into my wife's garage stall to take off the mower deck and store it for the winter was not easy. The tractor had little traction and did not want to turn until the 133 pound rear weight and the forward mounted plow were attached. Once the added weight of these two items was installed, the machine had zero issues in the snow.