Self adjusting front brakes

Why aren't yours self adjusting- that's the way they came? Maybe we need pictures.
I am restoring a 68 GTS H code, front brakes are questionable , passenger side had 10 inch drum had the self adjusting hardware minus the cable, the drivers side was missing a drum but also had the hardware minus the cable , the hubs on three wheels are small bolt pattern 7/16 lug studs while the drivers side front hub was 1/2 x 20 studs so I'm trying to determine what is correct for this car.