Mopar 52010480AB Line-Brake

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Whenever the vehicle is raised and securely supported on jackstands, thoroughly inspect the rubber hoses connecting the steel brake lines with the front and rear brake assemblies for any cracks, chafing, leaks, blisters, or other damage. Use a light and mirror to aid in the inspection. If any hose exhibits such conditions, it should be replaced immediately. To replace a flexible hose, start by cleaning all dirt from the hose fittings. Use a flare-nut wrench to disconnect the metal brake line from the hose fitting, being cautious not to bend the line. If the fitting is corroded, apply penetrating oil and allow it to soak for 10 minutes before trying again. Avoid attempting to break loose a frozen fitting nut, as it could kink the metal line, requiring replacement. Disconnect the brake hose from the frame or bracket by removing the U-clip and promptly plug the metal line to prevent excessive leakage and contamination. Unscrew the banjo bolt at the caliper and remove the hose, discarding the sealing washers. Attach the new brake hose to the caliper, using new sealing washers and tightening the banjo bolt to the recommended torque. Place the end of the hose fitting into the frame or bracket, ensuring it follows the same route as the original one, and secure it with the U-clip. Thread the metal line to the hose and tighten the brake tube fitting nut securely. Check for any interference with suspension or steering components, making adjustments as necessary. After installation, bleed the brakes, check the master cylinder fluid level, and test the brake operation before resuming normal service. When replacing brake lines, use the correct steel parts and avoid using copper tubing. Prefabricated brake lines with pre-installed fittings are available, and when bending a line, use a tubing bender to avoid kinking. Ensure proper support and clearance for the new line in brackets and between moving or hot components. Tighten the fittings securely, check the master cylinder fluid level, bleed the brakes, and test the brake operation before returning to regular use.