Delco Brakes

Removal Procedure





1. Remove two-thirds of the brake fluid from the master cylinder.
2. Raise the vehicle. Support the vehicle with suitable safety stands. Refer to Vehicle Lifting.
3. Remove the tire and the wheel. Refer to Tire and Wheel Removal and Installation. Reinstall two lug nuts to retain rotor on K models below 3646.6 kg (8050 lbs.) GVW.
4. Compress the piston using adjustable pliers over the inboard lining tab and the caliper housing flange.
5. Remove the brake hose from the caliper by removing the inlet fitting bolt.





6. Remove the mounting bolts (1), (2).





7. Remove the bolt boots (1), (2).
8. Remove the caliper.
^ Inspect the inside of the caliper assembly for signs of fluid leakage. Refer to Brake Caliper Overhaul if any leakage is detected.
^ Remove the mounting bolt seals if they were used.





9. Remove the bushings.
10. Inspect the mounting bolt and the sleeve assemblies for corrosion. Replace any corroded parts. Do not attempt to polish away any corrosion.

Important: Clean the caliper assembly and install a new brake hardware kit. Replace the brake hardware kit with each removal from the rotor.

11. Inspect the bolt boots for any nicks, cuts, or corrosion. Replace any damaged parts.

Installation Procedure





1. Install the new bushings and the bolt seals.
2. Lubricate the bushings and the mounting bolt seals with GM P/N 18010909 or the equivalent.





3. Install the new bolt boots (1), (2).
4. Install the caliper.





5. Fill both housing cavities between the bushings with GM P/N 18010909 or the equivalent.

Notice: Refer to Fastener Notice in Service Precautions.

6. Install the mounting bolt and the sleeve assemblies.

^ Tighten the bolt to 51 Nm (38 lb ft). The bolts boots must remain secure after tightening the bolts.

7. Connect the brake hose to the caliper.

^ Tighten the brake hose bolt to 45 Nm (33 lb ft).





8. Measure the clearance between the caliper and the bracket stops.
^ If necessary, remove the caliper and file the ends of the bracket to obtain a 0.26 to 0.60 mm (0.010 to 0.024 inch) total clearance.
^ Measure the clearances individually and then add them together.

Important: Pump the brake pedal until it is firm before moving the vehicle. Check the fluid level in the master cylinder after pumping the brakes.

^ Install the tire and the wheel.