Lexus 46540-20070 Shoe Assembly, Parking Brake

Remove the brake disc. Inspect the shoe lining material's thickness; if worn down to 1/32-inch or less, replace the shoes. While you can replace the shoes without removing the hub and bearing assembly, space will be limited. Wash the brake parts with brake system cleaner before disassembling. For shoe replacement, follow this order: remove both the front and rear parking brake shoe return springs from their respective anchor pins and unhook them, take off the rear shoe hold-down spring and its pin, remove the shoe strut between the shoes, take out the front shoe hold-down spring and its pin, remove the adjuster and the tension spring, pop off the C-washer from the pivot pin on the rear shoe's back and detach the parking brake lever, apply high-temperature grease to the backing plate's contact surfaces and the front shoe's backside, slide the parking brake lever onto the pivot pin with a new C-washer, flip the shoes, install the adjuster ensuring its ends engage with the shoes, attach the tension spring to the rear shoe's backside, place the shoes in position, install the strut and its spring ensuring the strut's ends engage with the shoes, and finally, install both the front and rear shoe return springs followed by their respective hold-down springs. With the assembly done, install the brake disc and use three wheel lug nuts to secure it. Remove the hole plug from the disc and adjust the parking brake shoe clearance using a tool or screwdriver until shoe-disc contact prevents disc turning. Back off the adjuster by eight notches, then replace the hole plug, ensuring the shoes don't drag on the disc. Install the caliper mounting bracket, followed by the brake caliper, ensuring the bolts are tightened. Install the wheel, tightening the lug nuts. If your vehicle has a parking brake lever, it should travel between five and eight clicks when pulled. To bed the shoes to the drum, drive at 30 mph on a dry, level road. Apply the parking brake slightly, driving 1/4-mile like this, and repeat two or three times, letting the brakes cool in between.

The initial steps are to loosen the wheel lug nuts, raise the rear of the vehicle, secure it with jackstands, and block the front wheels to prevent rolling. Then, release the parking brake and remove the wheel.

Install the torque plate and brake caliper, tightening the bolts to the specified torque.

Regular brake system inspections are crucial to identify issues promptly. Brake problems can manifest as vehicle pulling, noises, excessive pedal travel, pulsations, or fluid leaks. Early detection helps prevent costly damage and ensures safe operation.