Scary steering shaft/coupler failure!

My cousin did that on my 64 Barracuda. He was using the steering wheel to counteract the G's from acceleration instead of the seat. Popped right out, lost shoes and steering. Luckily we were on a straight and the Barracuda came to a nice straight stop. I got to drive from Bartlesville, OK to Marion, SD with the sloppy steering without shoes before I got home and fixed it. You need the small roll pin in the body or there is a failsafe wire retainer that replaces the box shaft roll pin. I got one at Carlisle last year.