68-70 B body TS and emergency flasher ?

I am wondering what turn signal and flasher units were spec'd for the 68-70 B body models? I am pretty sure the 552 is correct for emergency flasher. Not sure if the 224, 323 or 552 is correct for turn signals. Hoping to be educated. Attached photo is reference for 70 E body. Thanks! Joe

To my knowledge both the turn-signal and emergency flashers are electrically the same..
Except originally the specs for current handling and time on for the emergency flasher was higher..
I recall the current rating for the emergency flasher was 20 amps, turn signal was likely lower.

Just my $0.02...