Right - Passenger Side Rocker Panel Backing Plate 13BPSTK81 for K2500 C2500

Left - Driver Side Rocker Panel Backing Plate For 1988-2000 GMC K2500 PK712GG

For Chevy Express 1500/2500/3500 1996-2017 Front Door Rocker Panel Driver Side

For Chevy K3500/K2500 1990-1998 Rocker Panel Driver Side | 1.6MM | Backing Plate

For GMC K3500/K2500 1990-1998 Rocker Panel Driver Side | 1.6MM | Backing Plate

Right - Passenger Side Rocker Panel Backing Plate 97HRBTS21 for K2500 K3500

Front Rocker Panel Left For Chevrolet Express 1500/2500/3500 96-17 #0812-101 L

For Chevy Express 3500/2500/1500 1996 Rocker Panel Driver Side Front Door | EDP