Hello again,
After finally getting the new transmission oil cooler I called a mechanic to do the replacement and asked him to also change the transmission fluid. He asked me a question that I couldn't answer: ARE YOU ALSO GOING TO CHANGE THE FILTER? I believe that that would complicate the oil replacement with a complete removal of the tank. ... which would complicate with the removal of the seal gasket etc. Please tell me if my simple drain-and-fill solution doesn't require filter or other complicating replacements services. Thank you very much.

 

The JF506E gearbox has an INTERNAL fine mesh screen buried deep in the case.

Unless you intend to dismantle the gearbox I suggest you become satisfied with a simple fluid change.

 

No such intention, I had a thought but I was not sure. Thank you so much.