GM Service Manual Online
For 1990-2009 cars only

Rear Brake Rotor Replacement JD9


Object Number: 1850345  Size: MF

Callout

Component Name

Warning: Refer to Brake Dust Warning in the Preface section.

Caution: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

Caution: Any new rotor must have the protective coating removed from the friction surfaces before being placed in service. Remove the protective coating using denatured alcohol or an equivalent brake cleaner, and wipe the surface clean with clean cloths. Do not use gasoline, kerosene, or other oil base solvents which may leave an oily residue. This residue is damaging to the brake lining and is flammable.

Preliminary Procedures

  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.

1

Brake Caliper Bracket Bolt (Qty: 2)

Caution: Refer to Fastener Caution in the Preface section.

Procedure

  1. Remove all traces of the adhesive patch on the brake caliper bracket bolts and threaded holes of the brake caliper bracket.
  2. Clean the brake caliper bracket bolt threads and the threaded holes of the brake caliper bracket with denatured alcohol or equivalent and allow to dry.
  3. Apply threadlocker G/M P/N 12345493 (Canadian P/N 10953488) to 2/3 of the threaded portion of the brake caliper bolts.

Tighten
200 N·m (148 lb ft)

2

Brake Caliper and Bracket Assembly

Procedure

Without disconnecting the brake hose from the brake caliper, remove the brake caliper and bracket as an assembly and support with heavy mechanics wire or equivalent.

3

Brake Rotor Retainer (Qty: 2)

4

Brake Rotor

Procedure

  1. If reinstalling the original brake rotor, mark the position of the brake rotor to the wheel stud.
  2. Using the J 42450-A , clean any rust or corrosion from the mating surface of the hub/axle flange.
  3. Using the J 41013 , clean any rust or corrosion from the mating surface the brake rotor.
  4. After installing the brake rotor, measure the assembled lateral runout (LRO). Refer to Brake Rotor Assembled Lateral Runout Measurement.
  5. If the brake rotor was refinished or replaced, burnish the brake pads and rotors. Refer to Brake Pad and Rotor Burnishing.

Special Tools

    • J 41013 Rotor Resurfacing Kit
    • J 42450-A Wheel Hub Resurfacing Kit

Rear Brake Rotor Replacement JH6


Object Number: 1840286  Size: MF

Callout

Component Name

Warning: Refer to Brake Dust Warning in the Preface section.

Caution: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

Caution: Any new rotor must have the protective coating removed from the friction surfaces before being placed in service. Remove the protective coating using denatured alcohol or an equivalent brake cleaner, and wipe the surface clean with clean cloths. Do not use gasoline, kerosene, or other oil base solvents which may leave an oily residue. This residue is damaging to the brake lining and is flammable.

Preliminary Procedures

  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.

1

Brake Caliper Bracket Bolt (Qty: 2)

Caution: Refer to Fastener Caution in the Preface section.

Procedure

  1. Remove all traces of the adhesive patch on the brake caliper bracket bolts and threaded holes of the brake caliper bracket.
  2. Clean the brake caliper bracket bolt threads and the threaded holes of the brake caliper bracket with denatured alcohol or equivalent and allow to dry.
  3. Apply threadlocker G/M P/N 12345493 (Canadian P/N 10953488) to 2/3 of the threaded portion of the brake caliper bolts.

Tighten
200 N·m (148 lb ft)

2

Brake Caliper and Bracket Assembly

Procedure

Without disconnecting the brake hose from the brake caliper, remove the brake caliper and bracket as an assembly and support with heavy mechanics wire or equivalent.

3

Brake Rotor Retainer (Qty: 2)

Procedure

Discard the brake rotor retainers.

4

Brake Rotor

Procedure

  1. If reinstalling the original brake rotor, mark the position of the brake rotor to the wheel stud.
  2. Using the J 41013 , clean any rust or corrosion from the mating surface the brake rotor.
  3. Using the J 42450-A , clean any rust or corrosion from the mating surface of the hub/axle flange.
  4. After installing the brake rotor, measure the assembled lateral runout (LRO). Refer to Brake Rotor Assembled Lateral Runout Measurement.
  5. If the brake rotor was refinished or replaced, burnish the brake pads and rotors. Refer to Brake Pad and Rotor Burnishing.

Special Tools

    • J 41013 Rotor Resurfacing Kit
    • J 42450-A Wheel Hub Resurfacing Kit

Rear Brake Rotor Replacement JH7

Removal Procedure

    Warning: Refer to Brake Dust Warning in the Preface section.


    Object Number: 892159  Size: SH

    Caution: Any new rotor must have the protective coating removed from the friction surfaces before being placed in service. Remove the protective coating using denatured alcohol or an equivalent brake cleaner, and wipe the surface clean with clean cloths. Do not use gasoline, kerosene, or other oil base solvents which may leave an oily residue. This residue is damaging to the brake lining and is flammable.

  1. Release the park brake.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  4. Remove the hub and rotor assembly. Refer to Rear Axle Hub, Bearing, Cup, and/or Seal Replacement.
  5. Mark the relationship of the hub to the rotor.
  6. Place the hub and rotor assembly on a hydraulic press.
  7. Press the wheel studs out of the hub and rotor assembly.
  8. Separate the hub from the rotor.

Installation Procedure


    Object Number: 360809  Size: SH
  1. Align the hub and the rotor.
  2. Install each of the new wheel studs into the hub and rotor assembly by performing the following:
  3. 2.1. Install the stud.
    2.2. Install 4 washers to the stud.
    2.3. Install a lug nut to the stud with the flat side of the nut toward the washers.
    2.4. Tighten the lug nut to draw the stud into the hub and rotor assembly.
    2.5. Inspect the hub and rotor assembly to ensure the stud is seated completely.
    2.6. Remove the lug nut and the washers.
  4. Install the hub and rotor assembly to the vehicle. Refer to Rear Axle Hub, Bearing, Cup, and/or Seal Replacement.
  5. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  6. Lower the vehicle.