GrandPrix, Impala 2006-2008, Monte Carlo 2006-2007

Brake Shoes

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Removal & Installation




CAUTION
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket brake linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. Do not sand or grind brake lining unless equipment used is designed to contain the dust residue. Do not clean brake parts with compressed air or by dry brushing. Cleaning should be done by dampening the brake components with a fine mist of water, then wiping the brake components clean with a dampened cloth. Dispose of cloth and all residue containing asbestos fibers in an impermeable container with the appropriate label. Follow practices prescribed by the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) for the handling, processing, and disposing of dust or debris that may contain asbestos fibers.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Remove the brake drum.
  6.  
  7. Using tool J-38400 brake spanner and remover, remove the actuator spring from the adjuster lever. Use care not to distort the spring when removing it.
    CAUTION
    During the following steps when removing the retractor spring from either shoe and lining assembly, do not over stretch the spring. This will reduce its effectiveness. Keep fingers away from retractor spring to prevent fingers from being pinched between the spring and shoe web or spring and the backing plate.

  8.  
  9. Lift the end of the retractor spring from the adjuster shoe assembly. Insert the hook end of the J-38400, between the retractor spring and the shoe. Pry slightly to remove the spring end from the hole in the shoe.
  10.  
  11. Pry the end of the retractor spring toward the axle with the flat end of the tool until the spring snaps down off the shoe web onto the backing plate.
  12.  
  13. Remove the one brake shoe and remove the adjuster assembly.
  14.  
  15. Disconnect the parking brake lever from the shoe. DO NOT remove the parking brake lever from the cable end unless it is being replaced.
  16.  
  17. Using J-38400, lift the end of the retractor spring from the adjuster shoe assembly. Insert the hook end of the J-38400, between the retractor spring and the shoe. Pry slightly to remove the spring end from the hole in the shoe. Pry the end of the retractor spring toward the axle with the flat end of the tool until the spring snaps down off the shoe web onto the backing plate.
  18.  
  19. Remove the brake shoe.
  20.  

To install:

Click image to see an enlarged view

Fig. Rear brake assembly component alignment

  1. Clean all the brake spring completely with brake solvent and allow to air dry.
  2.  
  3. Disassemble, clean and lubricate the adjuster screw. Once lubricated, reassemble.
  4.  
  5. Clean the backing plate and after it is dry apply a thin coat of brake grease to the brake shoe contact points on the backing plate.
  6.  
  7. Position the brake shoe that connects to the parking brake lever, on the backing plate. Using J-38400, pull the end of the retractor spring up to rest on the web of the shoe. Pull the end of the retractor spring up until it snaps into the slot in the brake shoe.
  8.  
  9. Connect the parking brake lever.
  10.  
  11. Install the remaining shoe and the adjuster screw assembly.
  12.  
  13. Position the brake shoe, using J-38400, pull the end of the retractor spring up to rest on the web of the shoe. Pull the end of the retractor spring up until it snaps into the slot in the brake shoe.
  14.  
  15. Using J-38400, spread the brake shoes and work the adjuster screw into position.
  16.  
  17. Install the actuator spring with the U-shaped end going through the web.
  18.  
  19. Install the brake drum.
  20.  
  21. Install the tire and wheel assembly.
  22.  
  23. Adjust the brakes.
  24.  
  25. Road test for proper brake operation.
  26.  

 
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