Mike,
If your still stock you dont have a nut breaker on the wheel that will lock the steering. Also, although we all like to think of our boats as "legends", the 336 isnt one. A three year run on them.
I use the clutch on my autopilot to hold the wheel. Also you can do something as simple as lashing the wheel to your helm.
If you have questions about the boat, we have been over ours from stem to stern.
Good luck