[Saebasan]

Hi,
I will replace the final drive’s oil soon.

Watching lots of videos, everyone re-greases the finger where the shaft joint articulation connects.

But, what about the joint articulation itself??? No one does it.
No need to grease it or what???

 

[Beech]

They are not serviceable. Flex them in all directions and see if there is any knotchy feel. If so, it is done. Some of the GS shafts are rebuilt by A california shop. There might be a good shop that can insert new bearings but it is not common, worth asking aroun there in Japan. Then you have the middle joint of the two halves that is a vulcanized "rubber" joint that can fail from old age. At some point it is good to replace the unit. I have a couple used but good units on the shelf. New ones are expensive.

 

[Saebasan]

I see.
Thank you 🙏

 

[Beech]

As far as maintenance, a coat of moly based lube on the splines is a good idea. Here are some posts on the subject:

Search results for query: spline lube

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