For 1988-2000 GMC K2500 Rocker Panel Backing Plate 14935WR

Right - Passenger Side Rocker Panel Backing Plate fits K2500 1988-2000 54XJKZ

Left - Driver Side Rocker Panel Backing Plate fits Chevy K2500 1988-2000 47NCZY

89YT31Z Left - Driver Side Rocker Panel Backing Plate Fits 1988-2000 GMC K2500

Left - Driver Side Rocker Panel Backing Plate fits GMC K2500 1988-2000 36NTZJ

18RG36Q Left - Driver Side Rocker Panel Backing Plate Fits 1988-2000 Chevy K2500

For 1988-2000 GMC K2500 Rocker Panel Backing Plate 57137GRQG

For 1988-1999 Chevrolet C1500 Rocker Panel Backing Plate 32369KX