Coil springs

Hello there. This looks like a 15-111 Pivot Shoe. If the coil spring is 1/2" thick, then it is a Series 160 Coil Balance. Let me know if the spring is not 1/2" thick. These coil balance systems are modular, meaning each part is sold separately. For the coil springs, you have to choose a spring weight. This designates the weight the individual spring can uphold. For any springs with a #9 stamp, choose the S160-09 9 pound spring. You can reuse your old covers if they are undamaged--otherwise, see the 15-150S 1/2" spring single support. Let me know if you have further questions.