🔧 Tundra - Rear Brake Pad Replacement

Your Tundra uses rear disc brakes with a separate drum-style parking brake inside each rotor. This procedure replaces the rear pads without opening the hydraulic system or disturbing the parking brake.

Difficulty Level: Beginner | Estimated Time: 1.5-2 hours

Assumption: The rear rotors and calipers are serviceable and do not require replacement.

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⚠️ Safety & Precautions

• Work on level, solid pavement and support your Tundra with properly rated jack stands.
• Do not rely on a floor jack alone while working underneath or beside the vehicle.
• Leave the parking brake released because it operates inside the rear rotors.
• Chock both front wheels before lifting the rear axle.
• Never press the brake pedal while a caliper is removed.
• Do not allow a caliper to hang from its rubber brake hose.
• Brake dust can be harmful. Do not use compressed air to clean the brakes.
• Battery disconnection is not required.

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🔧 Required Tools

You'll need the following tools for this repair:

• 3-ton floor jack
• 6-ton jack stands
• Heavy-duty wheel chocks
• 21mm deep socket
• 14mm socket
• 3/8-inch drive ratchet
• 1/2-inch drive breaker bar
• 10-80 ft-lb torque wrench
• 50-150 ft-lb torque wrench
• Disc brake piston compression tool (specialty)
• Small flat-blade screwdriver
• Nylon parts-cleaning brush
• Brake caliper hanger (specialty)
• Plastic fluid syringe
• Drain pan
• Safety glasses
• Nitrile mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1 set
• Rear brake pad hardware kit - Qty: 1 kit
• Rear brake pad shim set - Qty: 1 set if not included with pads
• High-temperature silicone brake lubricant - Qty: 1 tube
• Non-chlorinated brake cleaner - Qty: 1 can

Replace in pairs: Install new pads on both rear wheels, never on only one side.

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📋 Before You Begin

• Park your Tundra on level pavement. Shift into Park, switch off the engine, and release the parking brake.
• Place heavy-duty wheel chocks securely against the front and rear of both front tires.
• Open the hood and inspect the brake-fluid reservoir. Use the plastic fluid syringe to remove a small amount only if the fluid is near the MAX line.
• A torque wrench tightens a fastener to a measured specification. Set it only when performing final tightening.
• A piston compression tool slowly pushes the caliper piston back so the thicker new pads will fit.
• No infotainment menu, scan tool, electronic parking-brake mode, or battery disconnect is required.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Rear Wheel Nuts

• With the rear tires still touching the ground, use the 21mm deep socket and 1/2-inch breaker bar to loosen each rear wheel nut about one-half turn.
• Do not remove the nuts yet.

Step 2: Raise and Support the Rear Axle

• Position the 3-ton floor jack beneath the center of the rear axle differential housing. Do not place the jack against the thin differential cover.
• Raise the rear until both tires clear the ground.
• Place the 6-ton jack stands beneath the rear axle tubes near the leaf-spring mounting areas.
• Lower the axle carefully onto the stands, then gently shake the body to verify that it is stable.

Step 3: Remove the Rear Wheels

• Use the 21mm deep socket and 3/8-inch ratchet to remove the wheel nuts.
• Remove both rear wheels and place them flat away from the work area.
• Work on one brake at a time so the assembled side remains a reference.

Step 4: Inspect the Brake Assembly

• Use the safety glasses and nylon parts-cleaning brush with non-chlorinated brake cleaner to clean loose dust from the caliper and pad area. Position the drain pan underneath.
• Inspect the rotor for deep grooves, cracks, heavy rust, blue heat spots, or a pronounced outer ridge.
• Inspect the caliper and hose for wet brake-fluid leakage. Stop the repair if leakage is present.
• Compare inner and outer pad wear. A large difference can indicate seized slide pins or a sticking caliper.

Step 5: Remove the Rear Caliper

• Use the 14mm socket and 3/8-inch ratchet to remove the upper and lower caliper guide-pin bolts.
• Lift the caliper straight away from the pads. Do not pull or twist the brake hose.
• Support the caliper from the suspension with the brake caliper hanger.
• Do not remove the larger caliper-bracket bolts because rotor removal is unnecessary for a pad-only service.

Step 6: Remove the Old Pads and Hardware

• Pull the inner and outer pads from the caliper bracket by hand.
• Note the location of the wear indicator, shims, and stainless pad-support clips.
• Use the small flat-blade screwdriver to lift the old support clips from the bracket.
• Do not pry against the rubber guide-pin boots.

Step 7: Check the Guide Pins

• Pull each guide pin from its rubber boot by hand, checking that it moves smoothly and is free of corrosion.
• Use the nylon parts-cleaning brush and brake cleaner to clean dirty guide pins. Keep brake cleaner away from rubber components.
• Apply a thin coat of high-temperature silicone brake lubricant to the smooth guide-pin surfaces, then reinstall them by hand.
• Confirm that each rubber boot seats fully in its groove.
• Replace the caliper or damaged guide components if a pin is deeply rusted, bent, or seized.

Step 8: Compress the Caliper Piston

• Place one old pad against the piston face to spread the force evenly.
• Use the disc brake piston compression tool to push the piston slowly and straight into the caliper bore.
• Watch the brake-fluid reservoir while compressing the piston. Use the plastic fluid syringe if the fluid approaches the top.
• Stop if the piston will not move smoothly. Excessive force can damage the caliper.
• Compress slowly to prevent reservoir overflow.

Step 9: Install the New Hardware and Pads

• Use the nylon parts-cleaning brush and brake cleaner to clean the caliper-bracket surfaces beneath the pad-support clips.
• Install the new stainless support clips by hand in the same positions as the originals.
• Apply a very thin film of high-temperature silicone brake lubricant where the pad tabs contact the support clips.
• Install any supplied shims on the backs of the pads according to their marked positions.
• Install the inner and outer pads by hand. Position the wear indicator exactly as it was on the original pad.
• Keep lubricant off the rotor and pad friction surfaces.

Step 10: Reinstall the Caliper

• Remove the brake caliper hanger and lower the caliper over the new pads by hand.
• Make sure the guide-pin boots are not twisted or pinched.
• Start both guide-pin bolts by hand to prevent cross-threading.
• Use the 14mm socket and 10-80 ft-lb torque wrench to tighten the guide-pin bolts to 43 Nm (32 ft-lbs).
• Repeat Steps 4 through 10 on the opposite rear brake.

Step 11: Reinstall the Rear Wheels

• Install each wheel and start all wheel nuts by hand.
• Use the 21mm deep socket and 3/8-inch ratchet to snug the nuts in a crisscross pattern.
• Use the 3-ton floor jack to lift the axle slightly, remove the 6-ton jack stands, and lower the tires to the ground.
• Use the 21mm deep socket and 50-150 ft-lb torque wrench to tighten the wheel nuts in a crisscross pattern to 131 Nm (97 ft-lbs).

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✅ After Repair

• Before moving your Tundra, press and release the brake pedal repeatedly until it becomes firm. The first several strokes may travel farther than normal.
• Check the brake-fluid level. It should be between MIN and MAX; do not overfill it.
• Start the engine and hold firm pedal pressure for 30 seconds. The pedal should remain steady and no brake warning light should remain illuminated.
• Check around both rear calipers for leaks and verify that the brake hoses are not twisted.
• Test the brakes at walking speed in a safe, traffic-free area before normal driving.
• Bed the pads with 5-10 moderate stops from approximately 50 km/h to 15 km/h. Allow cooling time between stops and avoid holding the hot brakes at a complete stop.
• Avoid hard braking and heavy towing for approximately 300 km unless an emergency requires it.
• Recheck wheel-nut torque to 131 Nm (97 ft-lbs) after approximately 80-160 km.

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💰 DIY vs Shop Cost

Shop Cost: ₹12,000-₹24,000 (parts + labor)

DIY Cost: ₹5,000-₹12,000 (parts only)

You Save: ₹7,000-₹12,000 by doing it yourself!

Sonīpat-area labor rates vary; import specialists may charge more. This repair takes a shop approximately 1-1.5 hours.

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