Using a small flat screwdriver, I pried on the
lever of the inboard pin. I rotated the pin so
the short part of the "L"-shape was pointing
toward the front of the truck.
On a new
truck, the pin could be turned and lifted by hand.
But after a few years, the dirt and corrosion
made these pins hard to turn, so I needed to use
a tool to pry it out.