Pry the plunger out by using a screwdriver in the slot.

I removed the plunger, spring and shaft.

Cleaned out the hex hole.

Needed to cut the shoulder down where the actuator housing would go into the disconnect housing, I cut just behind the circular rib.

After cutting.

Then mounted the actuator to the housing, connected the wireharness and it works perfectly. This way it is firmly mounted in the original location and not just zip tied somewhere open to the elements.