Originally Posted by cudak888

You have to leave the headset cups in. Sometimes a good idea to put thick, cheap cups (if they fit) in place of any nice headset cups for this.

Last time I did this, I used a cut-off, solid stainless propeller shaft out of a boat. Fit really snug in the cups, so the force was spread nice and evenly across the cup edges.

At any rate, there isn't much to lose by trying.

-Kurt