Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1988S15/T15 4WD JIMMY V6-173 2.8LREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLSERVICE AND REPAIRREAR DRUM BRAKE SERVICESTEPS
1988 GMC S15/T15 4WD Jimmy V6-173 2.8L
Rear Drum Brake ServiceSteps
1988 GMC S15/T15 4WD Jimmy V6-173 2.8LSECTION Rear Drum Brake ServiceSteps
NOTES, WARNINGS, AND HINTS
Fundamentals and Basics
PARTS REMINDER LIST
Fundamentals and Basics
RECOMMENDED TOOLS
Tools and Equipment
PROCEDURES
1. Check for applicable Technical Service Bulletins (TSB).
2. Perform Initial Test Drive and Diagnosis By Symptom.
Fundamentals and Basics
3. Begin repairs, lift and support rear of vehicle, remove rear wheels and release the parking-brake.
4. Remove and Inspect drums, resurface or replace if necessary.
Testing and Inspection
5. Clean and Inspect rear brake assembly.
Testing and Inspection
6. Remove brake-shoes.
Service and Repair
7. Replace backing-plate if necessary.
Service and Repair
8. Rebuild or replace wheel-cylinder if necessary.
Service and Repair
9. Install brake-shoes.
Service and Repair
10. Install drum and Adjust brakes.
Adjustments
11. Bleed brakes.
Brake Bleeding
12. Adjust parking-brake.
Adjustments
13. Install tire and wheel assembly.
Fundamentals and Basics
14. Perform After Repairs Test Drive.
Fundamentals and Basics
ENVIRONMENTAL AND SAFETY CONCERNS
Service Precautions
Fundamentals and Basics
PARTS REMINDER LIST
Fundamentals and Basics
RECOMMENDED TOOLS
Tools and Equipment
PROCEDURES
1. Check for applicable Technical Service Bulletins (TSB).
2. Perform Initial Test Drive and Diagnosis By Symptom.
Fundamentals and Basics
3. Begin repairs, lift and support rear of vehicle, remove rear wheels and release the parking-brake.
4. Remove and Inspect drums, resurface or replace if necessary.
Testing and Inspection
5. Clean and Inspect rear brake assembly.
Testing and Inspection
6. Remove brake-shoes.
Service and Repair
7. Replace backing-plate if necessary.
Service and Repair
8. Rebuild or replace wheel-cylinder if necessary.
Service and Repair
9. Install brake-shoes.
Service and Repair
10. Install drum and Adjust brakes.
Adjustments
11. Bleed brakes.
Brake Bleeding
12. Adjust parking-brake.
Adjustments
13. Install tire and wheel assembly.
Fundamentals and Basics
14. Perform After Repairs Test Drive.
Fundamentals and Basics
ENVIRONMENTAL AND SAFETY CONCERNS
Service Precautions
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.