For 99-18 Chevy Extended Cab Inner Rocker Panel, GMC Truck 4 Door Ext Cab Left

Left Driver Rocker Panel for 2-door and 3-door Extended Cab Models Fits Chevy GM

Right Passenger Rocker Panel for 2-door Standard Cab Models Fits Chevy GMC

Both Rocker Panels 99-06 Chevy Silverado 4 Door Ext Cab Key Parts# 0856-503

2014-2018 Chevrolet Silverado/GMC Sierra Extended Cab Rocker Panel, Driver Side

Left Driver Rocker Panel for Extended Cab With Rear Door Fits 1994-02 Dodge

1988-1998 Full Size Chevy or GMC Pickup Regular or Extended Cab Rocker Panel ...

Rear Door Inner Rocker Panel LH 99-18 Chevy Silverado Crew Cab (0856-307)