They are really not hard to replace. The biggest concern is when you loosen the rubber hose from the steel brake line. If it is rusted, you can break the steel line, so make sure to hold it in place.
Here are the directions for replacement. The attached pics correlate with the directions.
Vehicle Brakes and Traction Control Hydraulic System Brake Hose/Line Service and Repair Procedures
1. Disconnect the brake hose (c) from the brake line (A) using a flare-nut wrench (B).
2. Remove the bracket mounting bolt (A), and then remove the brake hose (B).
3. Remove the connector bolt from the caliper, and disconnect the brake hose from the caliper.
1. Install a brake hose on the caliper with tightening brake hose bolt.
2. Install the bracket and the brake hose mounting bolt.
3. Connect the brake hose (A) to the brake line.
4. After installing the brake hose, bleed the brake system.
Here are directions for bleeding the system.
Do not reuse the drained fluid.
Always use Genuine DOT 3 or DOT 4 Brake Fluid. Using a non-Genuine DOT or 4 brake fluid can cause corrosion and decrease the life of the system.
Make sure no dirt of other foreign matter is allowed to contaminate the brake fluid.
Do not spill brake fluid on the vehicle, it may damage the paint, if brake fluid does contact the paint, wash it off immediately with water.
The reservoir on the master cylinder must be at the MAX (upper) level mark at the start of bleeding procedure and checked after bleeding each brake caliper Add fluid as required.
1. Make sure the brake fluid in the reservoir is at the MAX (upper) level line (A).
2. Have someone slowly pump the brake pedal several times, then apply pressure.
3. Loosen the right-rear brake bleed screw to allow air to escape from the system. Then tighten the bleed screw securely.
4. Repeat the procedure for wheel in the sequence shown until air bubbles no longer appear in the fluid.
Check out the diagrams (Below). Please let us know what you find.
Images (Click to enlarge)
Monday, March 15th, 2021 AT 6:43 PM