M9960D trans noise question

[docstoy]

Have gear noise while setting still with Trans. range in park and shuttle shifter in either forward or reverse . Hydraulic fluid and filters changed , didn't make any difference.

 

[North Idaho Wolfman]

Please pick a model:
If you don't know, give me the tractors serial number and I can tell you.

 

[docstoy]

M9960D SERIAL NO. 50687