Inner rocker. Left Inner. Left.FRONT FLOOR. Rocker Panel. Sheet metal structure used along the sides of the vehicle floor. CROSSMEMBER. Floor rail. Floor REINFORCED. Floor Side Rail. Inner rocker. Inner sill. Lower rail. MEMBER SUB - ASSEMBLY, FLO. MEMBER, SIDE. Rear sidemember. RELAY. Rocker panel. Rocker REINFORCED. Side support. Sidemember ASSEMBLY. Sidemember extension. Torque box.