The valve is held in place using a pair of valve locks and a 1.300-inch spring retainer. Compress the spring and use a magnet to remove the locks, and the valve will drop out though the chamber ...

To use this tool, you will need to remove the coilover from the car. The spring compressor hooks can handle spring diameters from 3.5-inch to 11.5-inch and compress 3,000 pounds. Align the lower ...

This isn't difficult if you have the correct tools. Several companies offer an on-head spring compressor; we chose the TFS tool, but Comp Cams and Crane offer similar versions.