Here's a general procedure. Consult your repair manual for specific details and torque specifications for your vehicle. Variations may exist depending on the exact model and brake system components.
Tools You'll Need:
* Jack and jack stands
* Wheel chocks
* Lug wrench
* Socket wrench and sockets (various sizes)
* Hammer (rubber mallet is preferred)
* Large flathead screwdriver (or a brake drum puller – recommended)
* Wire brush
* Brake cleaner
Procedure:
1. Safety First: Park the vehicle on a level surface, engage the parking brake firmly, and chock the front wheels. Raise the rear of the vehicle using a jack and securely support it with jack stands. Remove the wheel.
2. Inspect the Drum: Look for any obvious signs of damage to the drum or the brake shoes.
3. Remove the Emergency Brake Cable: There's typically a retaining clip or bolt holding the emergency brake cable to the backing plate. Remove it to release any tension on the cable.
4. Remove the Backing Plate (If Necessary): Some models require removing the backing plate to access the drum easier. This typically involves removing a few bolts attaching the plate to the axle flange. Inspect your specific vehicle to see if this is necessary.
5. Drum Removal: This is where things can get tricky.
* Method 1: Using a Flathead Screwdriver: Gently insert a large flathead screwdriver between the drum and the backing plate. Gently pry and tap around the circumference to break the drum free. This method can damage the drum if not done carefully. Avoid excessive force.
* Method 2: Using a Brake Drum Puller: This is the recommended method. A brake drum puller is a specialized tool designed to pull the drum off safely without causing damage. Follow the manufacturer's instructions for using the puller.
6. Clean the Drum and Shoes: Once the drum is off, use a wire brush to clean off any rust or debris. Inspect the brake shoes for wear and tear. If the shoes are worn, they need to be replaced.
7. Reassembly: The reassembly process is the reverse of removal. Remember to properly reinstall the emergency brake cable and any other components removed. Apply appropriate torque specifications to all bolts.
8. Test the Brakes: After reassembly, thoroughly test the brakes before driving the vehicle to ensure everything functions properly.
Important Considerations:
* Rust: If the drum is heavily rusted, it might be very difficult to remove. Penetrating oil applied several hours in advance may help loosen it.
* Brake Fluid: Be careful not to spill any brake fluid. It's corrosive and can damage paint.
* Brake Shoe Adjustment: After replacing brake shoes or drums, you may need to adjust the brake shoes. Refer to your repair manual for instructions.
Disclaimer: This is a general guide. Improper brake repair can be dangerous. If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Always consult your vehicle's repair manual for specific instructions and torque specifications.
