4. After removing our old beat-up fender, we could inspect the condition of the plastic inner fender and cowl sheetmetal. Our inner fender was complete junk. Every one of the fender mounting tabs was broken (arrow), and there was a huge hole melted in it. Inspecting the backside of the original fender showed that a torch had been used to fix an earlier dent and, consequently, the heat melted the plastic inner fender. Here's CC's tip of the month: Rather than replacing the unit with another '70-'72 crack-prone plastic inner fender, use one from a '68-'69 Chevelle; they're metal and they bolt right up.