🔧 Wrangler - Rear Brake Pads & Rotor Replacement

This job replaces your rear brake pads and rotors so your Wrangler can stop smoothly and safely. The rear rotor also “covers” the parking brake shoes (a small drum brake inside the rotor), so we’ll make sure the parking brake isn’t holding the rotor on.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• 🛑 Work on level ground; chock the front wheels before lifting.
• 🧯 Do not breathe brake dust; use brake cleaner, not compressed air.
• 🧱 Support the rear axle with jack stands; never rely on a jack.
• 🔥 Brakes can be hot; let parts cool before touching.
• 🔧 Keep brake fluid off paint; it can damage finishes.
• ⚡ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum, pair)
• Wheel chocks (pair)
• Lug wrench or 19mm socket
• Ratchet (3/8")
• Ratchet (1/2")
• 13mm socket
• 18mm socket
• Torque wrench (10–200 ft-lbs range)
• Flathead screwdriver
• C-clamp or disc brake piston compressor (specialty)
• Wire brush
• Bungee cord or mechanic’s wire
• Brake cleaner spray
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake rotors - Qty: 2 (replace in pairs)
• Brake pad hardware/clip kit - Qty: 1
• Brake caliper slide pin grease (silicone) - Qty: 1
• Brake parts cleaner - Qty: 1
• DOT 3 brake fluid - Qty: 1 quart

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📋 Before You Begin

• 🅿️ Put the shifter in PARK and release the parking brake (parking brake can trap the rotor).
• 🧊 Place wheel chocks in front of both front tires.
• 🔧 Crack the rear lug nuts loose 1/2 turn using a lug wrench or 19mm socket before lifting.
• 🧴 Open the hood and locate the brake fluid reservoir; make sure it’s not overfilled (fluid rises when compressing pistons).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and support the rear

• Use a floor jack under the rear axle housing (or axle tube) to lift the rear.
• Place jack stands under the rear axle tubes and lower the Jeep onto them using the floor jack.
• Give the Jeep a firm shake to confirm it’s stable.

Step 2: Remove the rear wheels

• Remove lug nuts using a lug wrench or 19mm socket.
• Remove both rear wheels and set them aside.

Step 3: Remove the caliper (the clamp that squeezes the pads)

• Turn the steering wheel is not needed for rear; just access the back of the caliper.
• Remove the two caliper slide bolts using a 13mm socket.
• Lift the caliper off the bracket.
• Support the caliper with a bungee cord or mechanic’s wire so it does not hang by the brake hose.

Step 4: Remove the brake pads and inspect hardware

• Slide the inner and outer pads out of the bracket by hand.
• Remove the pad clips/hardware using a flathead screwdriver if needed.
• Tip: Take a quick photo before disassembly.

Step 5: Remove the caliper bracket (the pad “frame”)

• Remove the two caliper bracket bolts using an 18mm socket and a 1/2" ratchet.
• Set the bracket aside.
• Later during reassembly: Torque to 100 Nm (74 ft-lbs) using a torque wrench.

Step 6: Remove the rotor

• Pull the rotor straight off the wheel studs.
• If the rotor is stuck, spray the hub area with brake cleaner spray and tap the rotor hat lightly (avoid studs) using the handle end of your ratchet.
• If the rotor won’t come off, the parking brake shoes may be holding it:
  • Make sure the parking brake is fully released.
  • Use a flathead screwdriver through the access slot/hole to back off the star wheel adjuster a few clicks (this loosens the shoes).

Step 7: Clean and prep the hub surface

• Use a wire brush to clean rust from the hub face (where the rotor sits).
• Spray the area with brake cleaner spray and let it dry.
• Tip: A clean hub helps prevent pedal pulsation.

Step 8: Install the new rotor

• Clean the new rotor with brake cleaner spray (removes packing oil).
• Slide the new rotor onto the studs.
• Hold the rotor in place by threading on one lug nut hand-tight (use a spare lug nut by hand).

Step 9: Reinstall the caliper bracket and hardware clips

• Reinstall the bracket over the rotor and start the bolts by hand.
• Tighten the bracket bolts using an 18mm socket.
• Torque to 100 Nm (74 ft-lbs) using a torque wrench.
• Install new pad hardware/clips into the bracket.

Step 10: Compress the caliper piston

• The piston is the round “push pad” inside the caliper that squeezes the brakes.
• Use a C-clamp or disc brake piston compressor (specialty) to slowly push the piston fully back in.
• Check the brake fluid reservoir level as you compress; remove a little fluid if it’s getting too high.

Step 11: Install the new pads

• Apply a thin layer of brake caliper slide pin grease (silicone) to pad contact points where they touch the hardware clips (do not get grease on rotor/pad friction material).
• Install the inner and outer pads into the bracket.

Step 12: Reinstall the caliper

• Slide the caliper over the new pads.
• Install and tighten the caliper slide bolts using a 13mm socket.
• Torque to 35 Nm (26 ft-lbs) using a torque wrench.

Step 13: Repeat on the other rear side

• Repeat Steps 3–12 on the other rear wheel.

Step 14: Reinstall wheels and torque lug nuts

• Reinstall both wheels and hand-thread all lug nuts.
• Lower the Jeep off the stands using the floor jack.
• Tighten lug nuts in a star pattern using a torque wrench.
• Torque to 129 Nm (95 ft-lbs).

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✅ After Repair

• 🦶 Pump the brake pedal 10–15 times until it feels firm (this seats the pistons).
• 🧴 Check brake fluid level and top off with DOT 3 brake fluid if needed.
• 🛞 Test the parking brake hold on a gentle incline; if it’s weak, the drum-in-hat parking brake may need adjustment.
• 🚗 Do a careful test drive: start at low speed and confirm smooth stops with no pulling or grinding.
• 🔥 Pad bedding (recommended): 6–10 moderate stops from ~30 mph to ~5 mph, with cool-down driving between stops.

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💰 DIY vs Shop Cost

Shop Cost: $450-$850 (parts + labor)

DIY Cost: $160-$350 (parts only)

You Save: $290-$500 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-3 hours.

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🎯 Ready to get started?

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