Huret dropout with Crane derailleur?
So: I have a Raleigh Competition frame which has a Huret derailleur hanger. Based on reading around in this forum, I sourced a Shimano Crane rear derailleur--- thinking that it would fit once I'd run a 10mm tap through the threads.
Did all that. However, the various tabs and limit stops on the Crane derailleur don't seem to allow it to fit onto the Huret dropout. It almost looks as if I would need to file a notch into the dropout in roughly the 2 o'clock position, to allow one of the tabs on the derailleur to slot next to the dropout.
Again, searching around seems to show some Schwinns with modified rear hangers showing just such a notch to enable rebranded Crane derailleurs to fit.
Does anyone have experience with this?
Thanks,
N