Springs are amazing things, which is why you'll find them as integral ingredients in everything from mattresses to engines, such as the balance shaft tension spring. The only trouble with springs is that they will wear out in time, especially a spring that works as hard as your balance shaft tension spring. Don't mourn over the death of your stock balance shaft tension spring—swap it out with a fresh replacement balance shaft tension spring from AutoAnything. All of our OEM-grade balance shaft tension springs come with free shipping and a 1-year lower-price guarantee.