Left - Driver Side Rocker Panel Backing Plate fits K20 Pickup 1973-1974 62WKQD

Left - Driver Side Rocker Panel Backing Plate fits K30 Pickup 1973-1974 99WYKJ

Left - Driver Side Rocker Panel Backing Plate fits C10 Pickup 1973-1974 12PFDG

Left - Driver Side Rocker Panel Backing Plate fits C20 Pickup 1973-1974 83KHTX

57VD29R Left - Driver Side Rocker Panel Backing Plate Fits 1975-1986 Chevy C30

Left - Driver Side Rocker Panel Backing Plate fits K10 Pickup 1973-1974 58PMJM

For 1975-1986 Chevrolet K5 Blazer Rocker Panel Backing Plate 71849RDDR

Fits 1988-1999 Chevrolet K1500 Rocker Panel Backing Plate Left - Driver Side 761