Rear Strut Assembly Disassembly and Assembly: Disassembly

With special tool (A) placed to spring as shown, turn special tool bolts alternately until spring tension is released. Whether it is released or not can be known by whether strut turns lightly while strut spring is held stationary.
Special tool

(A): 09940-71431

Fig 1: Identifying Rear Strut Disassembly
Courtesy of SUZUKI OF AMERICA CORP.
While keeping spring compressed with special tool as shown, remove strut nut.
Special tool

(A): 09945-26010 (17 mm)

(B): 09900-00411

(C): 09900-00414 (6 mm)

Fig 2: Removing Strut Nut
Courtesy of SUZUKI OF AMERICA CORP.
Disassemble strut assembly.