Delay Wipers-use Ford switch and module?

[MARKDTN]

I have read a bunch on adding delay wipers. I can't seem to find a definitive answer. I recently made a '66 Mustang have delay wipers by using a 1980 switch and delay module from an F150. Common bolt-on mod for early Mustangs. But it got me thinking, both Ford and 67-72s seem to use a 2 speed non-recessed-park wiper motor. Both seem to switch the ground. Has anyone tried using a Ford switch and delay module with a 67-72 motor? The F150 switch I got had a long "D" shaped shaft that I cut off in the Mustang, so I think it could work with the stock knob with a little work.