Rear Side

Oil enters from oil inlet outlet hole (A) and flows into upper chamber (1). Oil enters from oil inlet outlet hole (B) and flows into lower chamber (3) via outside oil path of cylinder inside. With the pressure difference between oil flowed into the upper chamber and lower chamber, the piston (2) moves up and down and conveys a force generated through this motion to the tires.

Fig 1: Identifying Shock Absorber Operation Diagram (Rear Side)

Courtesy of NISSAN NORTH AMERICA, INC.