Toyota Pick-ups/Land Cruiser/4Runner 1970-1988

Brake Drum

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REMOVAL & INSTALLATION



See Figures 1 through 25

  1. Remove the hub cap (if used) and loosen the lug nuts. Release the parking brake.
  2.  
  3. Block the front wheels, raise the rear of the truck, and support it with jackstands.
  4.  


CAUTION
Support the truck securely.

  1. Remove the wheels.
  2.  
  3. Unfasten the brake drum retaining screws.
  4.  
  5. Tap the drum lightly with a mallet in order to free it. If the drum cannot be removed easily, insert a screwdriver into the hole in the backing plate and hold the automatic adjusting lever away from the adjusting bolt. Using another screwdriver, relieve the brake shoe tension by turning the adjusting bolt clockwise. If the drum still will not come off, use a puller; but first make sure that the parking brake is released. On models with dual rear wheels, the drum is removed along with the rear axle shaft.
  6.  


CAUTION
Do not depress the brake pedal once the brake drum has been removed.

  1. Inspect the brake drum as detailed in the following section.
  2.  
  3. To install the drum, simply replace the drum on the axle and tighten the retaining screw.
  4.  

Don't forget to adjust the brake shoes.


CAUTION
Do not step on the brake pedal with the drum removed.

  1. Install the wheels and lower the truck. Bleed the brakes and road test the vehicle.
  2.  



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Fig. Fig. 1: View of the rear brake drum --installed



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Fig. Fig. 2: View of the rear brake drum with retaining screws



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Fig. Fig. 3: Removing rear brake drum retaining screws



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Fig. Fig. 4: Removing the rear brake drum



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Fig. Fig. 5: Cleaning the rear brake shoes and related parts



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Fig. Fig. 6: View of the rear brake shoes and related parts



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Fig. Fig. 7: Removing the brake return spring



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Fig. Fig. 8: Removing the brake hold-down spring--with special brake tool



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Fig. Fig. 9: Removing the brake hold-down spring



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Fig. Fig. 10: Removing the brake hold-down spring and washers



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Fig. Fig. 11: Removing the back brake shoe (secondary)



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Fig. Fig. 12: Removing the front brake shoe (primary)



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Fig. Fig. 13: View of the parking brake cable to brake shoe



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Fig. Fig. 14: Removing the E-clip from the brake shoe



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Fig. Fig. 15: View of the E-clip on related brake parts



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Fig. Fig. 16: Removing the spring on brake related parts



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Fig. Fig. 17: View of the self-adjuster assembly



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Fig. Fig. 18: Removing the self-adjuster assembly



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Fig. Fig. 19: View of the brake springs in the installed position



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Fig. Fig. 20: Removing the wheel cylinder assembly



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Fig. Fig. 21: Removing the wheel cylinder assembly piston



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Fig. Fig. 22: View of the wheel cylinder assembly



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Fig. Fig. 23: Removing the rubber inspection plug from the backing plate



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Fig. Fig. 24: Adjusting the brake shoes after installation



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Fig. Fig. 25: Bleeding the brake shoes after installation

INSPECTION



  1. Clean the drum.
  2.  
  3. Inspect the drum for scoring, cracks, grooves and out-of-roundness. Replace the drum or have it "turned" at a machine or brake specialist shop, as required.
  4.  
  5. Light scoring may be removed by dressing the drum with fine emery cloth.
  6.  
  7. Heavy scoring will require the use of a brake drum lathe to turn the drum.
  8.  

 
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