Here's a general procedure; specific details might vary slightly depending on your exact S-10 model and the condition of the brakes:
1. Preparation:
* Park on a level surface, engage the parking brake, and chock the front wheels. This is crucial for safety.
* Raise the rear of the truck using a jack and securely support it with jack stands. Never work under a vehicle supported only by a jack.
* Remove the wheel. Use a lug wrench to loosen the lug nuts before jacking up the truck. Then remove the nuts and take off the wheel.
2. Drum Removal:
* Inspect the brake drum. Look for any retaining clips or springs. Some S-10s might have small spring clips holding the drum in place; these will need to be carefully removed.
* Often, the drum will just pull off. Sometimes it's tight due to rust or brake dust buildup. If it's stuck, gently tap it around its circumference with a rubber mallet to loosen it. Avoid using a hammer directly on the drum surface, as this can damage it. A large C-clamp can also help by gently spreading the drum slightly. If it's *extremely* stuck, you may need penetrating oil (like PB Blaster) and allow it to soak for a while.
* Once the drum is off, you'll have access to the brake shoes, wheel cylinders, and other components.
3. (Optional, but recommended) Further Inspection & Maintenance:
* Inspect the brake shoes: Check for wear and tear, scoring, or glazing. Replace if necessary.
* Inspect the wheel cylinders: Check for leaks or damage. If there are leaks, you'll need to replace the wheel cylinders.
* Inspect the emergency brake cable: Make sure it's functioning correctly and not frayed or damaged.
* Inspect the brake drum: Look for deep scoring or cracks. Significant damage may require replacement. Clean the drum thoroughly.
* Clean all components: Use a wire brush and brake cleaner to thoroughly clean all parts.
4. Reassembly (Reverse the Removal Process):
* Install new brake shoes and wheel cylinder (if necessary). Make sure to adjust the shoes properly so they're contacting the drum evenly. Refer to a repair manual for proper adjustment.
* Lubricate components as needed. Use brake grease only where recommended in the repair manual.
* Carefully reinstall the brake drum.
* Reinstall the wheel and tighten the lug nuts. Tighten them in a star pattern to ensure even pressure.
* Lower the vehicle and torque the lug nuts to the manufacturer's specification (check your owner's manual).
Important Considerations:
* Repair Manual: A repair manual specific to your 1999 Chevy S-10 is highly recommended. It will provide detailed diagrams, torque specifications, and step-by-step instructions.
* Safety: This is a potentially messy job involving sharp edges and potentially dangerous components. Always prioritize safety. If you're uncomfortable performing this repair yourself, take it to a qualified mechanic.
This is a general guide. Always consult a repair manual appropriate for your specific vehicle for detailed instructions and safety precautions. Improperly installed brakes can be dangerous.