1969 Swinger 340 / 4psd in NJ

Generally speaking, the cars that had vinyl tops from the factory had bondo in the C pillars instead of lead. It was cheaper, faster, and the theory was it was gonna be covered anyway. This is why the Superbirds had vinyl tops. After dealing with all the lead work on the Daytonas, Ma decided it would make more sense to use plastic and slap on a top