For 1975-1978 GMC K15 Rocker Panel Backing Plate 47119DNYD 1976 1977

For 1975-1978 GMC K25 Suburban Rocker Panel Backing Plate 81976JV 1976 1977

For 1975-1978 GMC K25 Suburban Rocker Panel Backing Plate 93712SDDY 1976 1977

For 1975-1978 GMC K25 Suburban Rocker Panel Backing Plate 55811SC

For 1975-1978 GMC K25 Suburban Rocker Panel Backing Plate 82814SK

For 1975-1978 GMC C25 Suburban Rocker Panel Backing Plate 32441BD 1976 1977

For 1975-1978 GMC C25 Rocker Panel Backing Plate 75173MB 1976 1977

For 1975-1978 GMC K15 Rocker Panel Backing Plate 39589YP 1976 1977