For 1977-1978 GMC K35 Rocker Panel Backing Plate 35288BPJG

For 1977-1978 GMC K35 Rocker Panel Backing Plate 73539QH

For 1977-1978 GMC K35 Rocker Panel Backing Plate Left - Driver Side 76843YRGP

For 1977-1978 GMC K35 Rocker Panel Backing Plate Right - Passenger Side 81562TF

For 1977-1978 GMC K35 Rocker Panel Backing Plate Left - Driver Side 17184KK

Right - Passenger Side Rocker Panel Backing Plate For 1977-1978 GMC K35 WY274WP

For 1979-1986 GMC K1500 Rocker Panel Backing Plate Left - Driver Side 94725WV

Left - Driver Side Rocker Panel Backing Plate For 1977-1978 GMC K35 ZD539JJ