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
Hard to see but if I remember correctly many of the line tie rods had a "B" stamped on the bottom cover where the zerk is on aftermarket rods.
65-66 typically did not have that, more of a 67-up thing.