Don't try and take the pin out..disassemble your column shaft.It's just a C ring and the shaft will slide out.
..that wire retainer can be made at home in a few minutes with some 11 gauge rod or a coat hanger with a bit of careful bending.
So you're saying remove the seering wheel, get the turn signal switch out of the way, and slide the shaft out of the top of the column? I still need to get the shaft pin out to get the new column seal on and then back in again to make the coupling work
