[sick472]

The 2 collapsible steering shafts that I have seen (72 C10 and 74 Challenger) had plastic melted into the through-holes to keep it together for assembly purposes, not pins. My friend push/pulled to hard while removing his column from his Challenger and sheared the plastic. Not a big deal as it was pretty tight anyways and after it was re-installed...it can't go anywhere and is still collapsible.

Now, my 67 F@rd has a one piece shaft and they call it "the harpoon". It's about 5 feet long and will get you on the chest if you have a bad head-on Collison.