Giving us a part number will help us about as much as my wife putting me on a diet. Ain’t going to happen. You want to try again by painting us a better picture of what you are trying to do. Include things such as units model and serial numbers, telling us which spring you are talking about and why you are making this repair. There are some great techs on this site, but on the weekend we leave our ESP in the shop and enjoy our families.