Never replace only one wheel cylinder - always replace both of them at the same time. To remove, raise the rear of the vehicle and support it securely on jackstands. Block the front wheels to keep the vehicle from rolling. Remove the brake shoe assembly. Remove all dirt and foreign material from around the wheel cylinder. Disconnect the
Brake Line with a flare-nut wrench, if available. To remove the wheel cylinder, unscrew the hydraulic line-to-wheel cylinder threaded fitting, then remove the mounting bolts. Don't pull the brake line away from the wheel cylinder. Remove the wheel cylinder mounting bolls. Detach the wheel cylinder from the brake backing plate and place it on a clean workbench. Immediately plug the brake line to prevent fluid loss and contamination. To install, place the wheel cylinder in position and install the bolts finger light. Connect the brake line to the cylinder, being careful not to crossthread the fitting. Tighten the wheel cylinder bolts to the torque. Tighten the brake line fitting and install the brake shoes and drum. Bleed the brakes. Install the wheel and lug nuts. Lower the vehicle to the ground and tighten the lug nuts to the torque. Check the operation of the brakes carefully before driving the vehicle.