Hello, Norm,
I drilled a hole in the quadrant pin but require a thinner washer as there's barely any room for it, and the split pin so i just put the pin in for now and will replace it with a thinner washer to protect the split pin from cutting as you've advised. The steering to the left is much improved as it was almost straight with the pin on the quadrant moving almost 2 inches upward when steering to the left.
I jacked up the left side to get better access.
Now will do the wheel turning outwards on both sides and the washers to space the tyres out from the king pins shortly to stop them from rubbing.
.