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Chevrolet Sonic Repair Manual: Drum Brake Hardware Replacement (J93, J94)

Chevrolet Sonic Repair Manual / Chassis / Brakes / Drum Brakes / Drum Brake Hardware Replacement (J93, J94)

Removal Procedure

    Warning:

    Refer to Brake Dust Warning.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  3. Remove the brake drum. Refer to Brake Drum Replacement.


  4. Remove the upper brake shoe return spring (1).

  5. Remove brake shoe adjuster (1).

  6. Remove the brake shoe adjuster actuator lever (1).

  7. Remove the brake shoe hold down spring and cup assemblies (1) by compressing the spring and rotating the assembly 1/4 turn.

  8. Remove the hold down spring and cup assembly pins (1).

  9. Spread the top of the brake shoe assembly (1) and lift the assembly over the wheel hub.
  10. Release the park brake actuator lever from the park brake cable eyelet.

  11. Remove the lower brake shoe return spring (1).
  12. Inspect the drum brake hardware and replace any components, as necessary. Refer to Drum Brake Hardware Inspection.
Installation Procedure
  1. Clean the drum brake backing plate of any dirt and debris.
  2. Apply a light coat of high temperature brake lubricant to the brake drum backing plate shoe contact surfaces.

  3. Install the lower brake shoe return spring (1).

  4. Install the park brake actuator lever to the park brake cable eyelet.
  5. Spread the top of the brake shoe assembly (1) and lift the assembly over the wheel hub.
  6. Position the brake shoe assembly to the drum brake backing plate.

  7. Install the hold down spring and cup assembly pins (1).

  8. Install the brake shoe hold down spring and cup assemblies (1) by compressing the spring and rotating the assembly 1/4 turn.

  9. Install the brake shoe adjuster actuator lever (1).

  10. Install brake shoe adjuster (1).

  11. Install the upper brake shoe return spring (1).
  12. Adjust the drum brakes. Refer to Drum Brake Adjustment.
  13. Install the brake drum. Refer to Brake Drum Replacement.
  14. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
Drum Brake Hardware Inspection
Warning: Refer to Brake Dust Warning. Visually inspect the drum brake upper return spring (1) for the following conditions: Excessive corrosion Excessive stretchin ...

Drum Brake System Description and Operation
System Component Description The drum brake system consists of the following: Drum Brake Shoes Applies mechanical output force, from hydraulic brake wheel cylinders, to frict ...

Other materials:

Hydraulic Brake System Description and Operation
System Component Description The hydraulic brake system consists of the following: Hydraulic Brake Master Cylinder Reservoir Contains a supply of brake fluid for the hydraulic brake system. Hydraulic Brake Master Cylinder Converts mechanical input force into hydr ...

Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment
Ensure that the steering wheel is set in a straight ahead position. Loosen the tie rod jam nut (1). Adjust the toe to specification by turning the inner tie rod (2). Refer to Wheel Alignment Specifications. Caution: Refer to Fastener Caution. Tighten the t ...

Synchronizers Assemble
1st/2nd Gear Synchronizer iv Note: When servicing the synchronizers, retain them in the same order that they are removed. Keep the synchronizer components together and mark them to identify correct location. Install the synchronizer inserts (1) into ...

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