in my 1971 - Key to "RUN" - Insert small screw driver into slot (behind the directional turn switch)keeping the screw driver to the right It is here I need help for my Chiltons states - - can take "considerable force" to brake the housing flashing loose. Is a hammer needed? - - be careful so as not to damage other parts. Can lock parts be damaged that prevents the lock from being removed? Lock is being replaced so damage is not a concern, unless it prevents removal. The photo of the replacement lock, - - is the part the screw driver pushes on correctly labeled? - - Is the housing flashing the structure in the horizontal slot to the right?