Headlamp Retaining Ring: 58-76 era 5.3/4" each (4 used) Various GM 7 inch but you get the idea

but you get the idea

1967-68 Firebird models

While the fronts are also the same as the 1966 El Camino

These USA  reproduced FRONT and REAR seat trims in the pattern shown

El Camino tail Gate and side panel molding kit for the 64-65 El Camino

Headlamp Retaining Ring: 58-76 era 5.3/4" each (4 used) Various GM 7 inch but you get the ideaThis 5 3 4" trim ring secures the headlamp bulb within the headlamp bucket and is typically used on twin smaller 5 3 4" headlamp setups. Common applications include 1967 69 Firebirds, various GTO LeMANS, Chevelle, and El Camino models. These rings are designed exclusively for twin headlamp configurationsfour are required per vehicle. They are not compatible with single headlamp per side vehicles. Available individually. For the small retainer screws,