I have had my Kubota B3350SU for almost 2 years. It has 229 hours. I had a flat with my left front tire. The valve stems are facing in. I looked at my manual and Kubota says never turn the tires with the valve stems facing in, always facing out. I did some checking and by the Kubota Dealer installing the tires with the valve stems facing in can damage the spindles and bearings. My Kubota Dealer is now checking with Kubota to find out if any damage has been done. Has anyone else had any experiences with Tires installed with valve stems facing in and had any trouble.