A: About every six months, the rubber hoses connecting the steel brake lines to the front and rear brake assemblies should be inspected for cracks, chafing, leaks, blisters, and other damage. A thorough check using a light and mirror is recommended, and any hose exhibiting these conditions should be replaced with a new one. To replace the front brake hose, disconnect the brake line from the hose fitting using a back-up wrench, being careful not to bend the frame bracket or brake line. Remove the U-clip from the female fitting at the bracket using pliers, then detach the hose from the bracket. Unscrew the brake hose from the caliper and securely thread the new hose into the caliper. Install the female fitting in the hose bracket without twisting the hose, and secure it with the U-clip. Attach the brake line to the hose fitting using a back-up wrench. Ensure there are no kinks in the hose and that it doesn't contact any part of the suspension. For metal brake lines, use the correct parts and avoid using copper tubing. Prefabricated brake lines with flared tube ends and fittings are available for installation. Make sure the new line is securely supported in the brackets and has sufficient clearance from moving or hot components. After installation, check the master cylinder fluid level and add fluid if necessary. Bleed the brake system and test the brakes before driving in traffic.