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.
2004 Buick Rainier AWD V8-5.3L VIN PFACTORY OEM SERVICE PROCEDURE
Disc Brake Backing Plate Replacement - Rear
Disc Brake Backing Plate Replacement - Rear
Caution: Refer to Brake Dust Caution in Service Precautions.
Removal Procedure
1. Raise the vehicle.
2. Remove the tire and wheel assembly.
3. Remove the park brake cable from the rear brake caliper.
4. Remove the brake caliper and bracket assembly.
5. Remove the rear brake rotor.
6. Remove the park brake shoe.
7. Remove the rear drive axle.
8. Remove the retaining nuts from the backing plate.
9. Remove the backing plate from the rear axle housing.
Installation Procedure
1. Install the backing plate to the axle housing flange.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the backing plate nuts.
Tighten the backing plate nuts to 135 Nm (100 ft. lbs.).
3. Install the rear drive axle.
4. Install the park brake shoe.
5. Install the rear brake rotor.
6. Install the brake caliper and bracket assembly.
7. Install the park brake cable to the rear brake caliper.
8. Adjust the park brake shoe.
9. Install the tire and wheel assembly.
10. Lower the vehicle.
Caution: Refer to Brake Dust Caution in Service Precautions.
Removal Procedure
1. Raise the vehicle.
2. Remove the tire and wheel assembly.
3. Remove the park brake cable from the rear brake caliper.
4. Remove the brake caliper and bracket assembly.
5. Remove the rear brake rotor.
6. Remove the park brake shoe.
7. Remove the rear drive axle.
8. Remove the retaining nuts from the backing plate.
9. Remove the backing plate from the rear axle housing.
Installation Procedure
1. Install the backing plate to the axle housing flange.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the backing plate nuts.
Tighten the backing plate nuts to 135 Nm (100 ft. lbs.).
3. Install the rear drive axle.
4. Install the park brake shoe.
5. Install the rear brake rotor.
6. Install the brake caliper and bracket assembly.
7. Install the park brake cable to the rear brake caliper.
8. Adjust the park brake shoe.
9. Install the tire and wheel assembly.
10. Lower the vehicle.
Factory Service Tools
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.
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