You will need: a 13 mm wrench and a special 11 mm wrench for brake pipes.
The car uses four brake hoses: two (rear) - to connect the pipes to the working cylinders of the rear brake mechanisms and two (front) - to connect the pipes to the working cylinders of the front brake mechanisms.
Helpful Hint: Always use special wrenches to loosen pipeline nuts, as the nuts are tightly tightened and usually corroded, causing the edges of the nuts to become crushed when using regular wrenches.
Note: The work is shown on the example of the right front hose. The rear hoses, similar in design to the front ones, are replaced using the same techniques.
1. For ease of work, remove the front wheel from the side of the hose being replaced.
2. Remove the intermediate hose end secured to the shock absorber bracket.
3. Loosen the nut securing the brake pipe to the front brake hose.
4. ...and disconnect the hose.
Helpful Hint: To prevent the hydraulic fluid from completely leaking out, immediately plug the opening of the pipeline using any available method. Protective caps of air release valves are very suitable for this purpose.
5. Unscrew the bolt securing the lower end of the hose to the front wheel brake mechanism working cylinder...
6. ...and remove the hose.
Note the two copper sealing washers located on either side of the hose tip. Replace these washers with new ones when reassembling.
7. Install the new hose in the reverse order of removal.
Warning: Make sure that the hose is not twisted along the axis when installed.
8. Replace the second front hose in the same way.
9. After replacing the hoses, bleed the brake system (see "Replacing brake fluid").
[The original source of the article is the website CHEVYMAN.RU]