Toy Hauler springs come in various shapes and sizes. Thus, it is important that you measure your existing springs before purchasing new ones. To do this, make sure to measure only the broken springs. Do not measure any hoops or hooks that might be attached to the spring, and make sure to measure the diameter of the spring as well. This should give you an accurate measurement that you can use to purchase your new set of springs. Aside from the actual measurements, you will also have to know what kind of spring you are shopping for.