Parking Brake Cable

What a parking brake cable does

The parking brake cable is a steel cable in a protective sleeve that links the hand lever or foot pedal to the rear brakes. When you set the brake, the cable pulls on a lever at the rear drum or caliper mechanism and holds the vehicle in place without hydraulic pressure. Many 4x4s use a front cable from the lever to an equalizer, plus a left and right rear cable from the equalizer to each wheel.

Symptoms of a failing cable

• The lever or pedal goes nearly to the floor or has a lot more travel than before.
• The brake does not hold on a slope, or one wheel drags.
• The cable is frozen or rusted in its sleeve and does not release, causing a dragging rear brake.
• The sleeve is cracked, frayed or the end fitting has broken.

Water, road salt and mud are common causes, and a worn or corroded cable can seize after a long idle period.

Matching the right cable

Parking brake cables are not generic. The position matters, so you must determine whether you need the front, rear driver side, or rear passenger side cable. Compare these points:

• **Length.** Listings show lengths, such as 37-inch or 61-inch TeraFlex cables or 70.5-inch passenger side cables. A cable that is too short will bind and one that is too long may hang low.
• **Axle and brake type.** Rear drum and disc setups use different cables, and a disc brake conversion often needs a cable made for that kit. Some axle-specific cables, like those for a Ford 8.8, fit only that housing.
• **ABS and brake options.** Some versions are listed for ABS and disc brakes.
• **Lifted vehicles.** Taller suspension or longer-travel rear axles can need extended cables so they do not stretch at full droop.

Always confirm fitment for your exact year, make, model and axle, and match the old cable's length and end fittings if possible.

Installation and adjustment

Support the vehicle securely on jack stands, never on a jack alone. Release the parking brake, disconnect the cable at the lever or equalizer, and at the rear brake, then route the new cable along the same path with the factory clips. Adjust the cable so the rear wheels turn freely when released and the brake holds firmly after a few clicks of the lever.

Because parking brakes affect vehicle safety, test the brake on a gentle slope after installation, and have the rear brake components inspected by a professional if you notice dragging, leaking or uneven wear. Follow the manufacturer's torque and adjustment specifications.

To confirm the right cable, measure the old cable from end fitting to end fitting, and compare the ends with the new part, including the hook, eyelet or button shapes and the way the sleeve retains in its bracket. If the old cable is gone, look up the axle and brake type, because drum and disc cables differ.

Replace both rear cables together if one has failed from corrosion, since the other is usually similar in age. A little grease on exposed cable ends and the equalizer helps prevent seizing. Common mistakes include overtightening the adjuster so the rear brakes drag and overheat, routing the cable too close to the exhaust, and using the parking brake as the only protection on a steep grade without chocking the wheels. Check the brake regularly and exercise it from time to time so the cable does not rust in place.