My tractor power steering has failed. I've tried to rebuild the unit but still didn't work, so I bought a new/used power steering pump and it didn't fit PS, bought a rebuilt unit that looked same but was a little different and didn't work. I don't know what to do next. Sure hope someone out there can help. Power steering unit on my Ford below. Second photo is both units, on left is the one I rebuilt and right is the one I bought that was rebuilt but did not quite fit. I've been without my tractor for months and really need to get it back into the field.