My 4am crazy idea.
I have been thinking about how Kubota sells the ball joint in pieces, disassembled, which made me think why would they do that. After more thought, I wondered if its because the ball joint is to be installed in pieces without tearing down anything else. ie separating tractor
In other words, the repair sequence would go something like this:
Remove inspection window
Remove pin from ball joint
Remove C-Clip from ball joint
Slide transmission half of ball joint back
Remove pin from clutch side of ball joint
Slide and remove both ball joint pieces off of shafts
The install would be the reverse but with installing the ball bearings with grease, the seal, washers and then c-clip.
Not a lot of room to do this but I "think" its possible?