Don't forget to check your trailer tires....there is a code with a format of xx/xx which is the week & year it was made. 22/07 means 22nd week of 2007. Even if they look good they may be too old to take on long trips, especially if stored outside. Look for cracks in the sidewall, keep them Armoralled, and at proper pressure. Mine are garage kept but getting old. I only trust them for short trips.