I have a 9540 Kubota 2012 model with 815 hours. The tractor is equipped with a hyd. shuttle and a 24-24 trans. At 300 hours the steering got very heavy and rough at times you have to steer hand over hand. Tractor has been in the shop at two different dealers a total of eight times. Kubota field service reps. have also been involved and came to my farm twice. At present steering is getting worse and the Kubota rep. has told me that I will have to just live with it. I don't think so. Is anyone else having steering problems? G Moore Beebe Ar.