Question about Chevrolet Tahoe

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I need a diagram for the drum brakes for a 97 tahoe. I need pictures and instructions to put them together, i already have all the necessary parts.

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  • c11zachary_p Jul 22, 2010

    Very helpful, diagrams did not show up but if you click on them you can see them on another website.

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  • Chevrolet Master
  • 6,826 Answers

I tried to copy and paste the diagram, but Fixya.com may not transmit the full diagram:

Brake Shoes Removal & Installation Duo-Servo Type To Remove:

  1. Raise the vehicle and support it safely.
  2. Remove the tire and wheel assembly.
  3. Remove the brake drums.
  4. Using a brake tool, remove the shoe return springs.
  5. Remove the shoe guide.
  6. Remove the hold-down springs and pins.
  7. Remove the actuator lever and pivot.
  8. Remove the lever return spring.
  9. Remove the actuator link, parking brake strut, spring retaining ring.
  10. Remove the parking brake lever and washer.
  11. Remove the shoe assemblies.
  12. Remove the adjuster screw and spring from the shoe assembly.
To Install:
  1. Use brake cleaning fluid to remove dirt from the brake drum. Check the drums for scoring, cracks and for out-of-round; service the drums as necessary.
  2. Check the wheel cylinders by carefully pulling the lower edges of the wheel cylinder boots away from the cylinders. If there is excessive leakage, the inside of the cylinder will drip fluid; repair or replace as necessary.
  3. Check the flange plate, which is located around the axle, for leakage of differential lubricant.
  4. Lightly lubricate the parking brake cable, parking brake lever where it enters the shoe and the backing plate-to-shoe contact points. Use high temperature, waterproof, grease or special brake lube.
  5. Install the parking brake lever into the secondary shoe with the attaching bolt, spring washer, lockwasher, and nut. It is important that the lever move freely before the shoe is attached. Move the assembly and check for proper action.
  6. Lubricate the adjusting screw and make sure it works freely.
  7. Connect the adjuster screw and spring to the bottom portion of both shoes. Ensure the spring does not interfere with the adjuster rotation when installed. The primary (smaller shoe pad area) to the front and secondary shoe (larger shoe pad area) to the rear of the vehicle.
  8. Install the shoe assembly. Ensuring the shoe webs are positioned correctly against the wheel cylinder.
  9. Install the parking brake cable.
  10. Secure the primary shoes with the hold-down pin and spring.
  11. Install the parking brake strut and the strut spring.
  12. Install the actuator lever and pivot, securing the assembly with the hold-down pin and spring. Install the actuator link and spring.
  13. Install the return springs.
  14. Check the operation of the self-adjusting mechanism by moving the actuating lever by hand.
  15. Adjust the brakes and install the drum.
  16. Adjust the parking brake.
  17. Install the tire and wheel assembly.
  18. Lower the vehicle.
Leading-Trailing Type To Remove:
  1. Raise the vehicle and support it safely.
  2. Remove the tire and wheel assembly.
  3. Remove the brake drums.
  4. Raise the lever arm of the actuator until the upper end is clear of the slot in the adjuster screw.
  5. Slide the actuator off the adjuster pin. Disconnect the actuator spring from the shoe.
  6. Remove the hold-down spring assemblies and pins.
  7. Pull the bottom ends of the shoes apart and lift the lower return spring over the anchor plate. Allow the shoe ends to come together and remove the spring.
  8. Remove the shoe assembly, along with the upper return spring and the adjusting screw assembly.
  9. Remove the upper return spring and the adjusting screw assembly from the shoes.
  10. Remove the retaining ring, pin, spring washer, and parking brake lever.
Typical rear drum brake assembly (Leading/Trailing type) I need a diagram for - 93026g52.gif

To Install:
  1. Clean adjuster wheel and the backing plates with a suitable cleaner. Lubricate the backing plate contact points, levers and adjuster with a suitable lubricant.
  2. Assemble the parking lever, spring washer (concave side facing the brake lever), pin, and retaining ring onto the rearward shoe.
  3. Install the adjuster pin in the forward shoe with the pin projecting 0.276 in. (7mm) from the side of the shoe web where the adjuster actuator is installed.
  4. With the brake shoes resting on a flat surface (the shoe with the parking lever to the rear of the vehicle), install the upper return spring.
  5. Install the adjuster screw assembly with the spring clip facing the backing plate.
  6. Place the shoes in position on the backing plate. Do not place the lower shoe webs under the anchor plate.
  7. Install the lower return spring, spread the bottom of the shoes and position the shoe against the backing plate.
  8. Install the hold-down pins and spring assemblies.
  9. Install the adjuster actuator over the end of the adjuster pin so the top leg engages the notch in the adjuster screw.
  10. Install the actuator spring, being careful not to over-stretch it more than 3.27 in. (83mm).
  11. Install the parking brake cable to the lever.
  12. Adjust the parking brake if the shoes will not totally retract.
  13. Install the drum, tire and wheel assembly. Adjust the rear brakes and lower the vehicle.
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Posted on Jul 22, 2010

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