From 1984-1992, I NEVER had a request for these quarter panels, or doors, or trunk lids, hoods, or even front fenders for the 64-5 B-Body stuff. We got a 4-speed floor pan for a local guy that was converting over from an automatic once, but that was it for sheetmetal for these cars. Compared to 68-72 B-Bodies, & E-Bodies, this was very low to no demand stuff. I can't imagine any manufacturer tooling-up to make these pieces. Small patch panels OK, but full rear quarters? No way it would be profitable.