🔧 Wrangler - Rear Brake Pad Replacement

You’ll be removing the rear wheels, pulling the rear calipers back, swapping the pads, and compressing the caliper piston so the new (thicker) pads fit. On your Wrangler, the parking brake is a mechanical drum-in-hat style, so the parking brake must be released while you service the rear brakes.

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

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⚠️ Safety & Precautions

• ⚠️ Support with jack stands before working under/around the axle.
• ⚠️ Release the parking brake before starting (rear rotors can drag if it’s applied).
• ⚠️ Don’t let the caliper hang by the brake hose; support it with a hanger.
• ⚠️ Brake dust is harmful—use brake cleaner, don’t blow with compressed air.
• ⚠️ Keep brake fluid off paint; it can damage finishes.
• ⚠️ Battery disconnect is not required for this repair.

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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 (2-pack)
• 21mm socket
• 1/2-inch drive breaker bar
• 1/2-inch drive torque wrench (30-150 ft-lbs range)
• 13mm socket
• 3/8-inch drive ratchet
• 3/8-inch drive torque wrench (10-50 ft-lbs range)
• C-clamp (6-inch)
• Flat-blade screwdriver
• Wire brush
• Brake parts cleaner spray
• Bungee cord
• 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
• Brake caliper grease (silicone-based) - Qty: 1
• Brake cleaner - Qty: 1
• Brake fluid (DOT 3) - Qty: 1 quart

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📋 Before You Begin

• Park on level ground, shift to Park, and turn the engine off.
• Chock the front wheels with wheel chocks.
• Release the parking brake fully.
• Loosen the rear lug nuts 1/2 turn using a 21mm socket and breaker bar before lifting.
• Open the hood and check the brake fluid level; if it’s near “MAX,” plan to monitor it when compressing pistons.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and support the rear

• Lift the rear using a floor jack (rated 3-ton minimum) under the rear axle housing.
• Set the axle down onto jack stands (rated 3-ton minimum) securely.
• Give the Jeep a careful shake to confirm it’s stable.

Step 2: Remove the rear wheels

• Remove lug nuts using a 21mm socket and 1/2-inch drive ratchet or breaker bar.
• Remove both rear wheels and set them aside.

Step 3: Access the rear caliper and pads

• Turn the steering is not needed on the rear; just position yourself at the caliper.
• Use a flat-blade screwdriver to gently pry the caliper outward a little if needed to create slack. Pry gently—don’t bend hardware.

Step 4: Remove the rear caliper slide pin bolts

• Remove the two caliper slide pin bolts using a 13mm socket and 3/8-inch drive ratchet.
• Lift the caliper off the bracket.
• Support the caliper with a bungee cord so the brake hose isn’t stressed.
• When reinstalling: Torque to 31 Nm (23 ft-lbs).

Step 5: Remove old pads and inspect

• Pull the inner and outer pads out of the bracket by hand.
• Inspect the rotor surface for heavy grooves or cracking.
• Spray the bracket area with brake parts cleaner spray and scrub rust from pad contact points using a wire brush.

Step 6: Compress the caliper piston

• Place one old pad against the piston face.
• Use a C-clamp (6-inch) to slowly press the piston back into the caliper.
• Watch the brake fluid reservoir level as you compress; don’t let it overflow.
• Go slow to protect seals.

Step 7: Lubricate pad contact points (not the pad friction!)

• Apply a thin layer of brake caliper grease (silicone-based) to the pad ears where they slide in the bracket.
• Do not get grease on the pad friction material or rotor face.

Step 8: Install new pads

• Install the new inner and outer pads into the bracket by hand.
• Make sure pads move freely in the bracket (no binding).

Step 9: Reinstall the caliper

• Set the caliper over the new pads.
• Install the slide pin bolts using a 13mm socket and 3/8-inch drive ratchet.
• Tighten with a torque wrench: Torque to 31 Nm (23 ft-lbs).

Step 10: Reinstall wheels and torque lug nuts

• Reinstall the wheels and hand-thread lug nuts.
• Lower the Jeep off the jack stands using the floor jack (rated 3-ton minimum).
• Torque lug nuts in a star pattern using a 21mm socket and 1/2-inch drive torque wrench: Torque to 130 Nm (96 ft-lbs).

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✅ After Repair

• Pump the brake pedal slowly 10-15 times until it feels firm (this seats the pistons against the new pads).
• Check brake fluid level and top off with DOT 3 only if needed.
• Apply and release the parking brake to confirm normal feel.
• Road test at low speed first; confirm no pulling, grinding, or warning lights.
• Pad bed-in (recommended): make 8-10 moderate stops from 30 mph to 5 mph, with short cool-down driving between stops.

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💰 DIY vs Shop Cost

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

DIY Cost: $50-$120 (parts only)

You Save: $130-$400 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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