I need the group's collective wisdom....what am I doing wrong?

My new ignition switch is installed per Vanagon.com's list of steps.....but.....
Re-install ign.switch "block" over sterring column rod is pushing my steering coupler
at my feet apart?

I cannot seem to keep the coupler from seperating as I re-install ign. switch block.  This cannot
seperate because (1) steering safety; and (2) if it does, no room to install steering wheel (no threads...).

What am I doing wrong?  How to keep the coupler from seperating as I re-install ign. switch block?

Thanks in advance....what would us non-pros. do w/ old Vanagons w/o this list?>

Larry 
Georgia