Raise the vehicle and remove the wheel, then take off the
Brake Drum. Clean around the hydraulic connection to the wheel cylinder and disconnect the line, plugging the end to prevent fluid loss and dirt contamination. Remove the brake shoe pull back springs, followed by the screws securing the cylinder to the flange plate, and disengage the push rods from the brake shoes to remove the cylinder. Using pliers, take off the boots from the cylinder and discard them, along with the piston cups. Inspect the cylinder bore and pistons for corrosion and pitting, discarding any pitted components, while polishing stained surfaces with crocus cloth around the circumference. Ensure hands are clean, dry, and free from contaminants, then clean the metal parts in new brake fluid or denatured alcohol, shaking off any surplus fluid for ease of handling. Lubricate the cylinder with clean brake fluid and insert the spring expander assembly, followed by new cups that must be clean, dry, and not lubricated, ensuring the flat surface is forward to enter the ends of the cylinder. Install the pistons with the flat surface uppermost without lubrication, then press new boots into the cylinder counter bores without lubrication. Position the wheel cylinder on the brake flange plate and install screws loosely, followed by the push rods and pull back springs, connecting the hydraulic line to the cylinder while adjusting as necessary to prevent stripping the threads. Tighten the cylinder mounting screws, install the brake drum and wheel, and bleed the braking system before lowering the vehicle to the ground.