In Reply to: 8N with Ferguson TO20 hydraulic pump linkage and top plate posted by Kevin on May 07, 2018 at 09:13:11:
Ferguson designed the hyd system and used it on the TO-20 and TO-30. Ford used the same system on the 9N and 2n so all those parts will interchange. This is why you will find the front badge on Ford tractors, "Ferguson System".
The 8N was the end of similarity's except for the case. You can flip from Anything to the 8N or back wards as long as you change out the pump and linkage.
The wife's TO-20 is going to get 8N hydraulics.
Hope this clears it up a bit more.