Repair Pontiac Mid-size 1974-1983 Repair Guide

Brake Shoes

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REMOVAL & INSTALLATION





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Fig. Fig. 1 To remove the brake drum, remove the wheel and tire, then pull the drum from the axle



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Fig. Fig. 2 Exploded view of a typical drum brake assembly



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Fig. Fig. 3 When removing the drum brakes, work on one side, leaving the other side for reference



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Fig. Fig. 4 Before removal, clean the brake components using a commercially available spray cleaner



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Fig. Fig. 5 For drum brake shoe removal, special tools are available ...



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Fig. Fig. 6 ... to unhook and remove the return springs



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Fig. Fig. 7 Remove the left side return spring



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Fig. Fig. 8 Use the special tool to push in and turn the hold-down spring to disengage it ...



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Fig. Fig. 9 ... then remove the hold-down spring and the pin from the rear of the brake backing plate



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Fig. Fig. 10 Remove the parking brake strut and spring



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Fig. Fig. 11 After removing the pawl and lever return spring, the rear wheel shoes can be pulled off



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Fig. Fig. 12 Detach the secondary shoe from the parking brake lever ...



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Fig. Fig. 13 ... then use pliers to detach the rear cable from the parking brake lever

  1. Raise the car and support it on jackstands.
  2.  
  3. Slacken the parking brake cable.
  4.  
  5. Remove the rear wheel and brake drum. The front wheel and drum may be removed as a unit by removing the spindle nut and cotter pin.
  6.  
  7. Free the brake shoe return springs, actuator pull-back spring, hold-down pins and springs, and actuator assembly.
  8.  

Special tools available from auto supply stores will ease removal of the spring and anchor pin, but the job may still be done with common hand tools.

  1. Disconnect the parking brake lever from the secondary shoe and remove the shoe. The shoes may be removed together.
  2.  

To install:

  1. Clean and inspect all brake parts.
  2.  
  3. Check the wheel cylinders for seal condition and leaking.
  4.  
  5. Repack wheel bearings and replace the seals.
  6.  
  7. Inspect the replacement shoes for nicks or burrs, lubricate the backing plate contact points, brake cable and levers, and adjusting screws and then assemble.
  8.  
  9. Make sure that the right and left-hand adjusting screws are not mixed. You can prevent this by working on one side at a time. This will also provide you with a reference for reassembly. The star wheel should be nearest to the secondary shoe when correctly installed.
  10.  
  11. To install, reverse the removal procedure. When completed, make an initial adjustment as previously described.
  12.  

Maintenance procedures for the metallic lining option are the same as those for standard linings. Do not substitute these linings in standard drums, unless they have been honed to a 20 micro-inch finish and equipped with special heat-resistant springs.

 
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