How to remove PS box

Wow, thanks for the quick replies! That diagram helps - I had no idea it was that complex. I should have said that I removed the roll pin - I have not touched the dowel pin. Based on your comments, I think I'll pull back the steering column (again - I've been through dash pod removal 3 times in the last 2 months for a speedo repair).

I keep reading about the master spline - hopefully it makes sense when I see it - and hopefully orientation isn't a pain when I put it back together. Presently, the steering wheel is not centered, and I have the wheels turned to the left. I recall I had trouble accessing the roll pin with the steering centered, but sounds like I should recenter everything before removal.