Mopar 4779228AD Line-Brake Booster Vacuum

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Follow the same steps as the front brake hose, but note that it has a fitting and a bracket that is fastened to the rear frame. When replacing brake lines, use genuine steel brake lines and make sure they are securely supported in the brackets and have plenty of clearance between moving or hot components. After installation, check the master cylinder fluid level, add fluid as necessary, bleed the brake system, and test the brakes carefully before driving the vehicle in traffic.

Loosen the wheel lug nuts, raise the vehicle on jackstands, and remove the wheel. Unscrew the brake line fitting from the hose at the frame bracket using a flare-nut wrench. Remove the U-clip from the female fitting at the frame bracket and pass the hose through the bracket. At the caliper end of the hose, remove the banjo fitting bolt and separate the hose from the caliper. Remove the fastener from the hose bracket at the steering knuckle and detach it. Install the new hose by attaching the hose bracket to the steering knuckle, connecting the fitting to the caliper with the banjo bolt and new sealing washers, and pushing the metal support into the frame bracket and installing the U-clip. Connect the brake line fitting and tighten it securely. Bleed the caliper and then install the wheel and lug nuts.

The hose should be replaced with a new one.