Left - Driver Side Rocker Panel Backing Plate For 1987-1991 GMC R3500 FY115YF

For 1987-1991 GMC R3500 Rocker Panel Backing Plate Left - Driver Side 34871XXTG

For 1987-1991 GMC V3500 Rocker Panel Backing Plate Left - Driver Side 94127JD

Left - Driver Side Rocker Panel Backing Plate For 1989-1991 Chevy R3500 HX364QH

Left - Driver Side Rocker Panel Backing Plate fits GMC V3500 1987-1991 16QJQD

Left - Driver Side Rocker Panel Backing Plate fits Chevy R3500 1989-1991 16CNXW

For 1979-1986 GMC C3500 Rocker Panel Backing Plate Left - Driver Side 23784VP

For 1987 GMC R1500 Rocker Panel Backing Plate Left - Driver Side 49799SC