Unfortunately I don't know. I bought them from a friend of a guy that used to live down the street from me. The friend used to drag race Mopars and switched to Chevy's because parts were cheaper. I got them cheap because they were just taking up space in the guy's backyard, but they don't have a stamp on them anywhere with the manufacturer. They do hang down under my steering linkage and drag occasionally, but not often. Mainly on speed bumps, but it's gotten better once I put in stiffer torsion bars. The old slant 6 bars didn't do well with the 318's additonal weight - that and they were old!
