Drum brake installation troubles...

Well once again. wrong brake cables do this. disconect the cable at the lever on the shoe and see if the drum fits. The cables are different for every diam. drum. If the shoes are seated on the top pin and you can't move the shoes from side to side and the adjuster is at its narrow position the drums should go on. The wrong brake cable will stop the shoes from seating against the pin on the top. The parking brake when applied moves the shoes apart at the top away from the pin. If you can move the rear shoe forward and push the front shoe away from the pin or vice versa this is the problem. They should both be against at the same time.