Whenever the brake shoes are replaced, the retractor and hold-down springs should also be replaced due to the continuous heating and cooling cycle that the springs are subjected to, which causes them to lose tension over time and may allow the shoes to drag on the drum, leading to accelerated wear. Begin by loosening the wheel lug nuts, raising the rear of the vehicle, and securely supporting it on jackstands while blocking the front wheels to prevent rolling. Release the parking brake and remove the wheel, ensuring that all four rear brake shoes are replaced simultaneously, but work on one brake assembly at a time to avoid mixing parts. Inspect and replace the brake shoes, and if the brake drum cannot be easily removed, pry the rubber plug from the backing plate inspection hole, insert a screwdriver and a brake adjusting tool to lift the adjusting lever and rotate the adjusting screw, which will pull the brake shoes together. If the mechanism is difficult to turn, spray the assembly with penetrating oil and allow it to soak in. Before reinstalling the drum, check it for cracks, score marks, deep scratches, and hard spots, which appear as small discolored areas; if hard spots cannot be removed with fine emery cloth or if any other issues exist, the drum must be taken to an automotive machine shop for resurfacing. It is recommended to resurface the drums whenever a brake job is performed to eliminate the possibility of out-of-round drums. If the drums are excessively worn and cannot be resurfaced without exceeding the maximum allowable diameter, new drums will be required. If you choose not to resurface, at least remove the glazing from the surface with medium-grit emery cloth using a swirling motion. Install the brake drum on the hub, turn the adjuster wheel until the brake shoes just drag on the drum when rotated, then back off the adjuster wheel until the shoes no longer drag. Finally, mount the wheel, install the lug nuts, lower the vehicle, and make several forward and reverse stops to adjust the brakes until satisfactory pedal action is achieved.