Front Strut: Disassembly

Using a coil spring compressor, compress the coil spring - front.
Using a hexagon wrench to prevent strut rod from turning, remove the self-locking nut with ST.
Preparation tool:

ST: STRUT MOUNT SOCKET (20399AG000)

Fig 1: Compressing Front Coil Spring Using Coil Spring Compressor
Courtesy of SUBARU OF AMERICA, INC.
Remove the strut mount - front, spacer - front strut and spring seat - front strut UPR from the strut.
Gradually decrease the compression pressure of compressor, and remove the coil spring - front.
Remove the dust cover - inner and the helper - front strut.