Left - Driver Side Rocker Panel Backing Plate fits K25/K2500 Pickup 58ZXZH

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

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

Left - Driver Side Rocker Panel Backing Plate fits K2500 Suburban 44MQXX

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

For 1973-1974 GMC K25/K2500 Suburban Rocker Panel Backing Plate 13291PX

Right - Passenger Side Rocker Panel Backing Plate fits K25/K2500 Suburban 67QQVP

For 1973-1974 GMC K25/K2500 Suburban Rocker Panel Backing Plate 97497QKQX