Piston Rod Nut Removal Note

WARNING:

Removing the piston rod nut is dangerous. The shock absorber and spring could fly off under tremendous pressure and cause serious injury or death. Secure the shock absorber in the SSTs before removing the piston rod nut.

Protect the coil spring using a piece of cloth, then set the SSTs.
Compress the coil spring using the SSTs , and remove the piston rod nut.

Fig 1: Compressing Coil Spring Using SSTs And Remove Piston Rod Nut
Courtesy of MAZDA MOTORS CORP.