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

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 81935MM 1990

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 39172BHVG

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 76623JSDN

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 95724QWSW

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 11729VVDW

For 1989-1991 Chevrolet R3500 Rocker Panel Backing Plate 64916JBCH

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