For 1975-1978 GMC C15 Rocker Panel Backing Plate Right - Passenger Side 53238XT

57MK81S Right - Passenger Side Rocker Panel Backing Plate Fits 1975-1978 GMC C15

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

35BC38T Right - Passenger Side Rocker Panel Backing Plate Fits 1975-1978 GMC C15

For 1987 GMC V2500 Rocker Panel Backing Plate Right - Passenger Side 71786WV

For 1973-1974 GMC C15/C1500 Pickup Rocker Panel Backing Plate 83724KX

For 1975-1978 GMC C15 Suburban Rocker Panel Backing Plate 55486TTBV

For 1975-1978 GMC C25 Rocker Panel Backing Plate Right - Passenger Side 56175JM