Okay, it looks like the spindle/pin that runs through the ferrule may not be the point where things pivot from, rather its the ferrule within the front/back plate of the parallel arms that pivots? So forming of a domed "stop" at the end seems to work fine. I have a thrashed N/R dérailleur I'm going to take apart and try this fix. If it works, then I'll tackle my '66/'67 beauty as it has wobbly pivot points ;-( though it may have something else wrong with it after I take it a apart to inspect it.
Cheers,
Last edited by Kinst_VonSterga; 04-24-11 at 02:40 PM.