73 duster front brakes locking up when coming to a stop.

So here's the latest. I had a chance to check out the break problem. Turns out it's not the front brakes that are grabbing but the rear drums period after inspecting each side. I noticed that there is no cross bar at the top of either side Between the brake shoes, the little flat bar. Also, there is no adjuspring Spring and set up that they just are is there on both sides, but there's no e break p stat connects the shoes to the cable that being said with all of that stuff missing. Is that why the brakes are locking up? Short shoe is on the front long shoe is in the rear. I also noticed that the rear shoes were really thin