This guide outlines the general steps for replacing front disc brakes and rear drum brakes. The process can vary slightly depending on trim level and specific options. Always consult your owner's manual for specific details and torque specifications.
Tools You Will Need:
* Jack and jack stands (SAFETY FIRST: Never work under a vehicle supported only by a jack.)
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Wrenches (metric)
* Brake caliper compressor tool (for front brakes)
* C-clamp or similar (for rear brakes, potentially)
* Pliers
* Wire brush
* Brake cleaner
* New brake pads (front and rear)
* New rotors (front, likely needed if replacing pads)
* New brake shoes (rear)
* New brake hardware (clips, springs, etc.) – very important!
* Grease
* Torque wrench
Front Disc Brakes:
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks.
2. Lift and Secure: Jack up the front of the truck and securely place it on jack stands.
3. Remove Wheel: Remove the lug nuts and take off the wheel.
4. Remove Caliper: Use a socket wrench to remove the caliper mounting bolts. Carefully support the caliper with a bungee cord or wire to prevent it from hanging by the brake line.
5. Remove Rotor: The rotor may be held on by screws or simply friction. If it doesn't come off easily, use a rubber mallet to gently tap it off. Inspect the rotor for scoring or excessive wear. It's usually recommended to replace the rotors if replacing the pads.
6. Compress Caliper Piston: Use the caliper compressor tool to push the caliper piston back into its housing. This will create space for the new, thicker brake pads.
7. Install New Rotor: Install the new rotor.
8. Install New Pads: Install the new brake pads, ensuring they are properly seated in the caliper.
9. Reinstall Caliper: Reinstall the caliper, making sure the mounting bolts are tightened to the manufacturer's specifications.
10. Reinstall Wheel: Reinstall the wheel and tighten the lug nuts to the manufacturer's specifications.
Rear Drum Brakes:
1. Safety First: Follow the same safety procedures as for the front brakes.
2. Remove Wheel: Remove the lug nuts and take off the wheel.
3. Remove Drum: The drum may be difficult to remove due to rust. Sometimes a few sharp taps with a rubber mallet are necessary. If it's stuck, you may need to use a drum puller.
4. Remove Shoes and Hardware: Once the drum is off, carefully remove the old brake shoes, springs, and other hardware. Take photos or make a sketch to help with reassembly.
5. Clean: Thoroughly clean the drum and the backing plates.
6. Install New Shoes and Hardware: Install the new brake shoes and hardware, referring to your photos or diagram. Make sure everything is properly seated and the springs are correctly installed.
7. Adjust Parking Brake: You'll likely need to adjust the parking brake mechanism. There are usually adjusting screws or nuts that will need to be turned. This step is important for proper parking brake function.
8. Reinstall Drum: Carefully reinstall the brake drum.
9. Reinstall Wheel: Reinstall the wheel and tighten the lug nuts to the manufacturer's specifications.
Important Considerations:
* Bleeding the Brakes: After replacing any brake components, it's crucial to bleed the brakes to remove any air that may have entered the system. This usually requires two people and a wrench. This is a critical safety step.
* Torque Specifications: Always refer to your owner's manual for the proper torque specifications for all bolts and nuts. Over-tightening can damage components, while under-tightening can lead to looseness and failure.
* Brake Fluid: Brake fluid is corrosive. Be careful not to spill it on painted surfaces.
* Safety: Brakes are a critical safety system. If you are unsure about any step, seek professional help.
This guide provides a general overview. Detailed instructions specific to your 2003 Ford Ranger can be found in a repair manual specific to that vehicle. There are many resources available online (like YouTube videos) that can demonstrate these steps visually, but always prioritize safety and accuracy. Remember, working on brakes improperly can be extremely dangerous.
