Winter and freezing weather is here and time for our rear door locks to start sticking and freezing. Saw a unique and excellent idea on a fellow expediters truck the other day; The speacial lock made for trailer hitches on cars and trucks, looks sort of like a metal bolt seal used by the military on explosive loads. Good ones are made from harden steel and the locking end has a good rubber cap. Plus when you put the lock on you put the locking end to the top so water is kept out by the cap and cannot get in from underneath (unless water can run uphill). Good ones can be found in any outdoor/camping type store. Good luck this winter and happy hollidays to all.