Here's a general overview. Specifics may vary slightly depending on your exact Lumina model (LS, APV, etc.). Always consult a repair manual specific to your vehicle year and model for detailed instructions and torque specifications.
Tools you'll likely need:
* Jack and jack stands (SAFETY FIRST: Secure the vehicle properly)
* Wheel chocks
* Lug wrench
* Socket set (various sizes)
* Wrench set (various sizes)
* C-clamp or brake caliper compressor tool
* Brake cleaner
* New brake shoes, springs, wheel cylinders (if needed), hardware
* Possibly a wire brush or sandpaper
Steps (General Outline - Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, chock the front wheels, and use jack stands to securely lift the rear of the vehicle. Never work under a vehicle supported only by a jack.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Inspect the Brake System: Carefully inspect the entire brake assembly for wear, damage, or leaks. Pay close attention to:
* Brake Drums: Check for scoring, rust, or excessive wear. If severely damaged, replacement is necessary.
* Wheel Cylinders: Look for leaks or damage. These are often replaced with the brake shoes.
* Brake Shoes: Check for wear. Replace if the linings are worn thin or damaged.
* Springs and Hardware: Inspect all springs, clips, and other hardware for wear or damage. Replace as needed.
4. Remove the Brake Drum: For drum brakes (most likely on a 1995 Lumina), you may need to use a hammer and drift punch (gently!) to break the drum free. Some drums can be removed by hand after loosening the adjuster.
5. Remove the Old Brake Shoes: Once the drum is off, you'll see the brake shoes. Note the position and orientation of all components before removing them. They're usually held in place by springs and clips.
6. Clean the Brake Drum and Shoes: Thoroughly clean the brake drum and shoes using brake cleaner. Remove any rust or debris.
7. Install New Brake Shoes: Install the new brake shoes, ensuring they are correctly positioned and the springs and clips are properly seated. Refer to your repair manual for the exact procedure.
8. Install New Wheel Cylinders (if needed): If you're replacing the wheel cylinders, follow the instructions in your repair manual carefully. Bleeding the brakes will be necessary afterward.
9. Adjust the Brake Shoes: Carefully adjust the brake shoes so they lightly contact the drum. This step is crucial for proper braking performance.
10. Reinstall the Brake Drum: Slide the drum back onto the axle. It should fit snugly.
11. Reinstall the Wheel: Replace the wheel and tighten the lug nuts to the manufacturer's specified torque.
12. Bleed the Brakes (if necessary): If you replaced wheel cylinders, you *must* bleed the brakes to remove air from the lines. This is best done with a helper.
13. Test the Brakes: After reassembly, carefully test the brakes several times before driving the vehicle. Make sure the brakes are working properly and the parking brake holds effectively.
Important Considerations:
* Repair Manual: A Haynes or Chilton repair manual specific to your 1995 Chevrolet Lumina is invaluable. It provides detailed instructions, diagrams, and torque specifications.
* Safety: Working on brakes is dangerous. If you're not comfortable with the process, take it to a professional.
* Parts: Use high-quality brake parts from a reputable supplier. Don't skimp on safety.
* Torque Specifications: Always tighten bolts and nuts to the manufacturer's specified torque. Over-tightening can damage components, while under-tightening can lead to loosening and failure.
This information is for guidance only. Always prioritize safety and consult your vehicle's repair manual for specific instructions. Improper brake repair can lead to serious injury or death.
