Replacing rear car brake shoes
Most older cars have a brake shoe and drum style of brake system in the rear of the cars.Drum brakes are not quite as efficient as their counter part the disc brake system. Drum brakes are easily produced and can be used on the rear of a vehicle were only about 30% of the braking is created. Sometimes special brake shoe removal tools are required. Rear brake shoe performance can be affected when wet and the braking ability can be greatly diminished.
Before you begin park the car on a level surface, block the front tires to prevent the vehicle from moving. You will be dealing with asbestoses which is a hazardous material so wear protective gloves, clothing and eyewear.
Caution Brake shoes may contain asbestos !
Tools and Supplies Needed to Complete this Job
1. Floor Jack
2. Jack stands
3. Lug Wrench
4. Brake cleaner
5. Replacement Brake Shoes
6. Brake Shoe Removal Tool
7. Screwdriver set
9. Rags towels
Step 1 - Identify Rear Brake Shoes and Wheel Cylinder Components
Remove brake drum to inspect brake shoes for wear. If the brake material is less than 1/8 inch, they need to be replaced in most cases. Check thewheel cylinder for leaks. Remove the dust boot from the side of the wheel cylinder and check for brake fluid leaks. If brake fluid is present the wheel cylinder needs replacing. Also check brake shoe hardware, return and mounting springs, and replace if damaged or broken.
Step 2 - Removing the Brake Shoes and Wheel Cylinder
Use the brake spring tool to remove the return spring to each of the brake shoes.
Step 3 - Removing Brake Shoe Mounting Springs
Hold the rear of the retainer pin. Insert brake shoe removal tool over retainer clip, press down and twist counter clockwise. Remove spring and retainer. Inspect and replace as needed. Then remove the rear brake shoes and remaining hardware. Match the old brake shoes to the new brake shoes. Both sets should match up exactly. Then transfer hardware to new brake shoes
Step 4 - Removing Wheel Cylinder
After the rear brake shoe and hardware pieces have been removed, install line wrench onto brake line at the wheel cylinder and loosen the mounting fitting, then remove it. Note: brake fluid will leak from line when loosened. Remove wheel cylinder mounting bolts and replace wheel cylinder with new unit. Re-attach and tighten brake lines and retighten wheel cylinder mounting bolts. Then clean and lube the brake shoe backing plate
Step 5 - Reassemble With New Brake Parts
Reassemble with new brake parts and make sure all the brake hardware is mounted correctly. Note: when changing rear brake shoes, only disassemble one side at a time so you always have a reference copy on the side that is still together.
Step 6 - Adjusting Brake Shoes