Help w/ '68 Dart front 10" Drum brakes
well... you're missing the push pins. so, that's a problem.
and that means somebody put it together like that. with that level of bobo work, i'd be looking at everything with a hairy eyeball.
anyway, sounds like you're on the right path. R&R your wheel cylinders, get some pins, new shoes, check your drums, probably do wheel bearings and seals or repack them at the least. don't forget the cotter pin! double check your drop lines and master.
definitely take a lap around and have a look at the whole thing before returning to service.
btw, if you need assistance i'm in the SFV so don't hesitate to give a shout.