Here's a general overview of the process. Specific steps might vary slightly depending on your exact S-10 model and drum brake configuration. Always consult a repair manual specific to your vehicle year and model for detailed instructions and diagrams.
Tools You'll Need:
* Wheel chocks: Absolutely essential for safety.
* Jack and jack stands: Securely lift the truck and support it properly. Never work under a vehicle supported only by a jack.
* Lug wrench: To remove the wheel.
* Hammer: For tapping parts loose.
* Sockets and wrenches: Various sizes, including those appropriate for brake lines (often metric).
* Brake cleaner: To clean parts thoroughly.
* C-clamp or brake cylinder compressor: To compress the pistons inside the new cylinder. A compressor is strongly recommended.
* New rear wheel brake cylinder: Ensure you get the correct one for your S-10.
* New brake fluid: DOT 3 or DOT 4, depending on your vehicle's specifications.
* Wrench for bleeding brake lines: A bleeder wrench and a hose to collect the fluid.
* Gloves: Protect your hands from grease and brake fluid.
* Safety glasses: Protect your eyes from flying debris.
* Shop rags or paper towels: For cleaning.
* Torque wrench: To tighten bolts to the proper specification (check your repair manual).
Steps:
1. Safety First: Park on a level surface, engage the parking brake, and chock the front wheels.
2. Raise and Support: Safely lift the rear of the truck using a jack and securely support it with jack stands.
3. Remove the Wheel: Remove the lug nuts and take off the wheel.
4. Remove the Drum: Carefully remove the brake drum. It might be stuck due to rust; gently tap around the edge with a hammer and a block of wood to loosen it.
5. Remove the Brake Shoes: Detach the brake shoes from the backing plate. Note their position and orientation for reassembly.
6. Remove the Brake Cylinder: Locate the brake cylinder and disconnect the brake lines. You'll likely need a wrench appropriate for the brake line nuts. Have a container ready to catch any escaping brake fluid. There may be a retaining clip or bolt holding the cylinder in place; remove these.
7. Compress the Pistons (Optional but Recommended): A C-clamp can be used, but a brake cylinder compressor tool is preferable and safer. Compressing the pistons before installing the new cylinder will help prevent air from entering the system.
8. Install the New Cylinder: Carefully install the new brake cylinder, ensuring it is properly seated. Replace any retaining clips or bolts.
9. Reconnect the Brake Lines: Carefully reconnect the brake lines, ensuring they are tight and leak-free.
10. Reinstall the Brake Shoes: Reinstall the brake shoes, making sure they are correctly positioned and adjusted.
11. Reinstall the Drum: Carefully put the brake drum back on.
12. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts. Do not overtighten.
13. Lower the Vehicle: Carefully lower the vehicle.
14. Bleed the Brakes: This is crucial to remove any air introduced during the repair. Bleed the brakes at the bleeder valve on the affected wheel cylinder, following the proper procedure (usually starting with the furthest wheel from the master cylinder and working your way closer). Consult your repair manual for the bleeding sequence. An assistant to pump the brake pedal is usually needed.
15. Test the Brakes: After bleeding, carefully test the brakes several times, making sure they function correctly. If you are unsure about your brakes, take your vehicle to a professional to ensure safety.
Important Notes:
* Brake fluid is corrosive: Clean any spills immediately.
* Always use the correct type of brake fluid.
* Refer to a repair manual specific to your vehicle: This guide is a general overview; details may vary.
* If you're unsure about any step, seek professional help. Incorrect brake repair can be dangerous.
This is a complex procedure. If you are not comfortable with any part of this process, please take your vehicle to a qualified mechanic. Your safety and the safety of others depend on properly functioning brakes.
