new guy here . i just thought that some of you may be interested in this detailed description on how to rebuild your steering box . he also has the parts that you will need to do the job . kubota told me that a new steering shaft would'nt be available until march of next year and would cost around $360 . tony has them in stock and even though shipped from the UK, i had mine within a week and cost a total of $210 shipped to my door here in texas .
http://www.newlandsgroundcare.com/sboxrebuild.html
http://www.newlandsgroundcare.com/sboxrebuild.html