We installed new Aisin manual locking hubs because we wanted manual control for our journey. In our research, we saw that there have been some issues with the automatic OG hubs on the Delica breaking or disengaging at inopportune times.
The auto hub removal and manual hub installation is very simple. Just unscrew the auto hub cap, remove the axle clip, and unbolt the hub. Having the right tools is essential for dealing with the axle clip because it is the trickiest part!
Install the new hubs by doing the reverse of the steps to take off the old one. Just make sure you keep that axle clip clean and in the correct grooves.
We have been driving Peso off road for the past four months (July - August 2018 in Baja, Sept - Oct 2018 in Mexico) and so far have loved the hubs. Getting out to turn them on and off hasn’t really been an issue, except that they are a little stiff to turn on cold mornings.