I'm thinking you have the triangle bracket on the firewall and that's the one you are asking about? If so you must be missing the big clamp that goes around the column and bracket. One more part we need to make.
Sorry I don't have one. It's litraly a big thick hose clamp looking thing.
The link in the previous post shows the bracket for the under dash mount on an aftermarket 2" OD column.
Jim