🔧 Wrangler - Rear Brake Pad Replacement

Your Wrangler’s rear brake pads are wear items that clamp the rear rotors to slow the vehicle. Replacing them restores braking performance and prevents damaging the rotors when pads get too thin.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours

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⚠️ Safety & Precautions

• ⚠️ Support the Jeep with jack stands on a solid, level surface; never rely on a jack alone.
• ⚠️ Chock the front wheels with wheel chocks and leave the transmission in 1st gear.
• ⚠️ Brake dust is harmful—use nitrile gloves, safety glasses, and brake cleaner (don’t blow with compressed air).
• ⚠️ Do not press the brake pedal while a caliper is off the rotor.
• ⚠️ Keep brake fluid off paint; it can damage finishes.

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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)
• Wheel chocks
• 21mm socket
• 1/2" drive ratchet
• 1/2" drive breaker bar
• Torque wrench (20–150 ft-lbs range)
• 13mm socket
• Flathead screwdriver
• C-clamp (6" minimum)
• Wire brush
• Bungee cord
• Brake parts cleaner
• Shop towels
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake pad hardware kit (clips) - Qty: 1
• Brake caliper grease (silicone-based) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• Park on level ground, straighten the steering wheel, apply the parking brake, and leave the transmission in 1st gear.
• Place wheel chocks at the front tires.
• Loosen the rear lug nuts slightly before lifting (don’t remove yet).
• Open the hood and loosen the brake fluid reservoir cap (set it on top). This helps the caliper piston compress. Watch the fluid level so it doesn’t overflow.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the rear

• Use a floor jack (rated 3-ton minimum) to lift the rear at the axle housing.
• Set the Jeep down onto jack stands (rated 3-ton minimum) under the axle tubes.
• Give the vehicle a gentle shake to confirm it’s stable before you work.

Step 2: Remove the rear wheels

• Use a 21mm socket with a 1/2" drive ratchet (or 1/2" drive breaker bar) to remove the lug nuts.
• Remove both rear wheels for easier access and to do both sides as a pair.

Step 3: Remove the caliper guide pin bolts

• Turn the steering wheel is not needed on the rear, but rotate the rotor by hand to position the bolts where you can reach them.
• Use a 13mm socket with a 1/2" drive ratchet to remove the two caliper guide pin bolts (upper and lower) from the back of the caliper.
• Guide pins are the sliding bolts the caliper rides on.

Step 4: Lift the caliper off and support it

• Use a flathead screwdriver to gently pry the caliper outward if it’s tight on the rotor.
• Lift the caliper off the bracket and rotor.
• Hang the caliper using a bungee cord so it doesn’t pull on the brake hose. Never let it dangle by the hose.

Step 5: Remove old pads and hardware clips

• Slide the inner and outer pads out of the bracket by hand. If stuck, use a flathead screwdriver to nudge them free.
• Remove the stainless hardware clips from the bracket (if your new pads include new ones).

Step 6: Clean the bracket contact points

• Spray the bracket pad lands (where the pad “ears” sit) with brake parts cleaner.
• Use a wire brush to remove rust buildup so the pads can slide smoothly.
• Wipe clean with shop towels.

Step 7: Install new hardware clips and lubricate correctly

• Snap the new clips from the rear brake pad hardware kit (clips) into the bracket.
• Apply a very thin film of brake caliper grease (silicone-based) where the pad ears touch the clips.
• Do not get grease on pad friction material.

Step 8: Compress the caliper piston

• Place one of the old pads against the caliper piston face (as a protector).
• Use a C-clamp (6" minimum) to slowly press the piston back into the caliper until it bottoms out.
• Check the brake fluid reservoir while compressing; remove excess fluid with shop towels if it starts to overflow.

Step 9: Install the new pads

• Install the new inner and outer pads into the bracket. Make sure they slide freely in the clips.
• If your pad set includes a wear indicator, place it in the same position as the original setup on that side.

Step 10: Reinstall the caliper and torque the bolts

• Lower the caliper over the new pads and align the guide pin bolt holes.
• Install the guide pin bolts by hand first to avoid cross-threading.
• Use a 13mm socket with a torque wrench (20–150 ft-lbs range) to tighten the caliper guide pin bolts: Torque to 35 Nm (26 ft-lbs).

Step 11: Repeat on the other rear side

• Repeat Steps 3–10 on the opposite rear wheel.
• Replace pads in pairs (left and right).

Step 12: Reinstall wheels and torque lug nuts

• Reinstall the wheels and thread lug nuts on by hand.
• Lower the Jeep to the ground using the floor jack (rated 3-ton minimum).
• Use a 21mm socket with a torque wrench (20–150 ft-lbs range) to tighten lug nuts in a star pattern: Torque to 129 Nm (95 ft-lbs).

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✅ After Repair

• Before moving the Jeep, pump the brake pedal slowly 8–12 times until it feels firm (this seats the pistons to the new pads).
• Check brake fluid level and reinstall/tighten the reservoir cap.
• With the engine running, hold the brake pedal for 30 seconds and confirm it doesn’t slowly sink.
• Test drive at low speed first. Listen for grinding or pulling.
• Pad bed-in (recommended): make 6–10 moderate stops from ~30 mph to ~5 mph, with cool-down driving between stops. Avoid hard stops for the first ~200 miles if possible.

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💰 DIY vs Shop Cost

Shop Cost: $250-$450 (parts + labor)

DIY Cost: $40-$120 (parts only)

You Save: $130-$410 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.

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🎯 Ready to get started?

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