Leuf, as it recall I had to really watch the position that I had my mouth in while cursing very loudly.
I really don't recall however it was difficult and vowed never to do it again.
I recall using a combination of thin flat blade screw drivers to position the pin to go through the holes and needle point pliers, and a hammer. I would pry up on the rod to lift it past the indentations.
This probably explains why PC sells the whole pad assembly, IIRC about $40,
6 or 7 years ago.