Thank you guys for all your help, it's funny I was afraid we were going to screw up the steering wheel until it dawned on me as a read the posts, who cares?! I don't want the steering lock to work anyway,LOL....too many hours of working and worrying about this today has muddled the brain! And yes we were terrified that it was a reverse thread and we had been just tightening it, so I am very happy to hear that is not the case. I guess my biggest fear is to strip the bolt. That 10mm is a super tight squeeze and it almost seemed a little big, like it isn't going all the way in but the next size down had just a tiny amount of play which really made us fear stripping it. Does the 10mm head sound right? ( '83 380 sel) I be finding a pipe in the morning, wish me luck.........
~Meshale