How do you fill the transmission of a Case 680G and with what fluid?
Welcome to HEF, Larry John ! The four speed gear box requires 80/90W gear oil. The shuttle = Case / CNH HyTrans or its equivalent.
Thxs for the infor. Do you fill the transmission through the upper Plug hole?
#2, it may be on the other side of the case. Click on THIS FOR THE PARTS BOOK DOWN LOAD PAGE . When that page opens click on the title of the book you want and it will start the download. It is a much better book than the CNH online book.