Towing, Safety & Maintenance I wrote and article on it 12years ago, in Ford Muscle forum. It would be worth looking up. One thing about trailer tires, is make sure you have trailer tires on. Others don't work the same. Also their age after 10 years is an issue, along with tread wear pattern. If you're using a plastic box to hold your trailer battery, it will fail if you get hit or hit something. A nylon strap isn't going to hold anything in place.