Join us on Facebook: Search for 'ConcoursMustang' Private group!https://www.facebook.com/groups/concoursmustang/Indiana SAAC Fall Classic , French Lick, IN Oct 11-12http://www.insaac.org/SAAC National-Sanctioned Concours Event
Haven't found any markings on single exhaust hangers, but most I see are crusty-rusty, so hard to say for sure.
The tailpipe is stamped with the part # for the Muffler and tailpipe . Remember they are one piece units