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How to Replace a Brake Line in a Ford F-Series

by Contributor

Whether you own a Ford F-150, 250 or 350, your truck is only as tough as its most important parts. If you drive your truck through hard conditions, you should probably replace the manufacturer's stock brake line with more durable stainless steel ones.

Step 1

Raise and secure the truck, making sure your jack stands can support your size Ford. Remove the appropriate wheel, raise the hood and find where the brake lines run from the master cylinder to the brakes.

Step 2

Look over the whole brake line. Pay attention to how it's bent and coiled in multiple places. Bend the replacement line in the same way to reduce strain on the line.

Step 3

Remove the brake line by disconnecting both bolts at each connector with two flare nut or line wrenches. Plug the holes left in the line with a non-absorbent material like rubber.

Step 4

Install the new line by connecting each new pipe. Attach the bolts to each connector by hand, then tighten them with the wrenches.

Step 5

Bleed the brake system. Connect the opened bleeder valve on the caliper to a container of brake fluid with a vinyl tube. Have another person press on the brake pedal to remove the air.

Attach the wheel and lower the truck. Repeat for the other ends of the truck as needed. Top off the master cylinder with fluid and test the brakes after completion.


  • Cut the replacement line if it must be shortened to fit the truck. Flare the new ends to fit them onto the connectors.
  • Check the brake hose with the lines, especially if you have a 2005 or 2006 F-150 with a 5.4-liter engine. Ford recalled these models as the brake hoses can detach from the intake manifold.
  • Topping off the master cylinder before removing the line can reduce the amount of fluid lost after removal. Make sure the cap is sealed tightly.


  • Never let any parts hang from the brake hose that connects the line to the caliper. You must replace the hose if it is stretched or damaged.

Items you will need

  • Replacement brake line
  • Jack and jack stands
  • Tire iron
  • Line wrenches
  • Non-absorbent plugs
  • Pipe cutter
  • Vinyl tube
  • DOT 3 Motor Vehicle Brake Fluid

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