Correct. I have read about those, but have never seen one. My 88 Diplomat has a LU 904, but not electrically controled. The vehicle has the electrical solenoid control wire at the trans but it is not connected to anything. What I am trying to find out is if it is possible to somehow convert the non electrical LU feature to electrical.
Like could it be as simple as changing the valve body, or modifying the existing valve body, or something similar? I realize I would have to drill a hole in the case to make the electrical connection.