Scary steering shaft/coupler failure!
Huh? If the crimped on rubber seal clamp comes off the top , there's nothing to stop the shaft and shoes from coming out. Where would this 'safety pin' go? I had a similar experience after a romp off a green light. The column pulled up 2 inches through the 2 bolt plate under the lip of the dash on my 65. I felt it move and pushed it down hard, it went back to its original position but scared the **** out of me. I checked the seal the next morning and found I didnt even have a seal! I had bought the car about 2 months prior and didnt know dick about 'em as a 17 year old. There is a dot on the shaft that you need to measure for the correct depth for the shoes off the end of the coupler. Its 13/16 off the lip and the way you alter this is to slide the column up or down the column retainer bracket.