For 1987-1991 GMC R3500 Rocker Panel Backing Plate 34138ZZ

For 1975-1986 Chevrolet K20 Rocker Panel Backing Plate 88164ZC

Rocker Panel Backing Plate For 1987-1991 GMC R3500 1988 1989 1990 ZH933JW

For 1987-1991 GMC R3500 Rocker Panel Backing Plate 35942BSHG 1988 1989 1990

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

For 1975-1986 Chevrolet K5 Blazer Rocker Panel Backing Plate 71849RDDR

For 1987-1991 GMC V3500 Rocker Panel Backing Plate 12177XX

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 53676RK