-If you have not used a cheat and are still taking damage on your travels, sell your goods when you get to your destination. However, do not buy any more until after you have been to the garage. When you enter the garage, exchange trailers and the new trailer will have no damage. If you want to get your old trailer back again, simply change again and the damage will be gone. Note: If you have only sustained minor damage it will probably be a better value just to repair it.
-When your truck is damaged and you don't want to pay the expensive price for repairs, just trade your trailer. This will take your damage away.