It is recommended that retractor and hold-down springs arrest be replaced when the brake shoes have been removed and replaced, because of wear and tear which comes as a result of the continuous heat and cool cycle which weakens the tension of the springs such that the shoes wear at a faster rate against the drum. First, loosen the wheel lug nuts, lift the rear of the vehicle in the air and support it with jack-stands while putting chocks to the front wheels to prevent them from moving. Pull the parking brake handle and pull the wheel out, so that all four rear brake shoes may be replaced at once but work on one brake assembly only. If the drum does not come off easily, knock out the plug from the drum or backing plate, release the self-adjuster lever from the star wheel and rotate the star wheel to withdraw the shoes. Using brake system cleaner clean all the brake components thoroughly when you are done removing the drum. In case the drum stays stuck, make sure that the parking brake is off; use penetrating oil at the joint of the hub and the drum and wait before trying to remove the drum. Before reinstalling the drum, inspect it for crack, scores, deep scratches, and hard spots; if any are visible, should be taken to an automotive machine shop for resurfacing, according to professionals, this should be done every time a brake job is tackled. If resurfacing is not feasible, then, at least, scrape off any glazing with medium-grit emery cloth. Next repair the drum after which you fit it to the axle flange, the wheel is then fitted followed by the lugs nuts and finally lowering of the car. The last few stops should be made both forward and backward few times to attain the perfect measurement for brakes where the pedal action is acceptable, and the operation of brakes should be checked before maneuvering through traffic.