If you do go through with repairing it yourself, take pictures and keep us updated. I am curious about how the PTO is made compared to my
B2630.
Also, a few Kubota owners have been able to get some finical support from the Regional Sales manager especially if they can prove it is a know problem. See if you can find out if any service bulletins have been issued for that problem. Did you keep records of the service you did or the dealer? Having them will help your case out. I am not sure how CA works though.