Right - Passenger Side Rocker Panel Backing Plate fits K25/K2500 Pickup 95PZBV

Left - Driver Side Rocker Panel Backing Plate fits K25/K2500 Suburban 36BPDC

For 1973-1974 GMC K25/K2500 Pickup Rocker Panel Backing Plate 97498JB

Left - Driver Side Rocker Panel Backing Plate For GMC K25 Suburban KS883KN

Left - Driver Side Rocker Panel Backing Plate For GMC K2500 Suburban RR547XB

Rocker Panel Backing Plate fits GMC K25/K2500 Pickup 1973-1974 42BNRP

For 1973-1974 GMC K25/K2500 Pickup Rocker Panel Backing Plate 92587YKWW

49JZ22V Left - Driver Side Rocker Panel Backing Plate Fits 1975-1978 GMC K25