I was reminded recently of a couple items we aften forget about on our boats.  As we aproach freezing temperatures we all know to store the motor down so water drains out but often forget the other equipment that can freeze.  All the plumbing to livewells and pumps will hold residual water than can cause damage if allowed to freeze. Blow or suck them out with a shop vac.  Water pressure gauges and speedometers can be ruined as well. Disconnect the lines and drain them.  LCD displays and batteries should be removed if very cold temperatures are expected.
Also, check the bolt connecting your steering assembly to the motor bracket.  The bolt looks small for the task it performs but is plenty strong as long as it is kept tightened to spec.  If run loose it will wear and can fail resulting in a very bad day.