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Changing the Rear Brake Line
on a 2003 Rubicon Wrangler TJ

Notes on Changing the Rear Brake Line

If it's the OEM style brake line you want, this is the part for you. This one goes on the driver rear of the truck. The jeep dealership parts department is very proud of this brake line. They want to charge you $400 for it. Find it wherever you can, but if you want, you can order it for $17.99 at this link.

The part # 52128431AC

OEM Style Brake Line
If you don't want to order the OEM style line, you can use a generic 3/16" steel line from the local parts house, complete with flares and nuts. Just make sure you know how long you need it. This one is 20". Steel brake Line
If you use the generic steel line, you will need to buy some sort of line that goes from the tube to the caliper. This one is a Dynatrac line. Dynatrac brake line
It's not essential, but a tube bender may be helpful. Tube Benders
Avoid stripping your nuts and go ahead and get a flare nut wrench, you'll be glad you did. Flare Nut Wrench

The brake bleeding technique is from the "official" Jeep manual: Attach a hose to the bleeder valve, insert the opposite end into some brake fluid in a jar. Crack the valve open while a buddy steps on the brake and holds it down. Don't let up on the brake until you close the bleeder valve. Repeat until the brake pedal is firm and no more bubbles are visible. NOTE: If you crack the valve too far, you will get perpetual bubbles. Also, start with the wheel furthest from the master cylinder (R-Rear) and work your way around to the left front tire when bleeding.

OR, just crack the valve, have a buddy press the brake, close the valve, let up on the brake and don't worry about tubes, jars and bubbles. A little messier but works all the same.

Brake Bleeding