My 1998 is sagging quite badly in front (i.e. scraping speed bumps at 3 MPH.) Since it is again time to change shocks, I'd like to do springs also, but they are rather expensive, so I bought a pair of Superior 18-901 rubber doughnut coil spring spacers to put in. My concerns: (a) These can be inserted within the mid-coil winds, but don't look like they would stay in very well within the winds; or, (b) the diagram shows they can be installed at the bottom of the spring; however, won't that interfere with the proper seating of the spring tip in the shock groove? From all that I have read (and based on my last DIY shock job with a spring compressor) that fitting is crucial to proper physics of the shock and spring. Anybody have experience with rubber circular coil spring spacers? Thanks!!

never looked into them before but i think ive seen some fitted and secured using cable ties in the mid spring area, it was a while ago though so not sure