🔧 Front Brakes and Rotors - Replacement

Your Sierra’s front pads and rotors wear together, so replacing both at the same time restores braking feel and helps prevent noise, vibration, and pulling. This job is very doable at home if you work one side at a time and keep everything clean.

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

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⚠️ Safety & Precautions

• Work on level ground and keep the transmission in Park.
• Chock the rear wheels before lifting the front.
• Use jack stands under the frame. Never rely on the jack alone.
• Brake dust can be harmful. Do not blow it off with compressed air.
• If the brake fluid reservoir is full, remove a little fluid before pushing the caliper pistons back.
• Do not let the brake caliper hang by the hose.
• 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 (2, rated for vehicle weight)
• Wheel chocks
• Breaker bar
• 21mm socket
• 18mm socket
• 15mm socket
• Ratchet
• Torque wrench
• C-clamp or brake caliper compression tool (specialty)
• Bungee cord or caliper hanger
• Flat-blade screwdriver
• Wire brush
• Brake cleaner spray
• Safety glasses
• Nitrile gloves
• Shop towels

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front brake pad set - Qty: 1
• Front brake rotors - Replace in pairs - Qty: 2
• Brake caliper slide pin grease - Qty: 1
• Brake pad hardware kit - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Loosen the front lug nuts before lifting the truck.
• Keep the ignition off while working.
• If needed, open the brake fluid reservoir and check level before compressing the caliper piston.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen and raise the front of the truck

• Use a 21mm socket or breaker bar to loosen the front lug nuts 1/2 turn while the wheels are still on the ground.
• Lift the front with a floor jack and support it with jack stands under the frame.
• Remove both front wheels.
• Keep the truck stable before touching the brakes.

Step 2: Remove the caliper

• Use a 15mm socket to remove the two caliper slide pin bolts.
• Lift the caliper off the bracket and hang it with a bungee cord or caliper hanger.
• Do not let the brake hose carry the weight.

Step 3: Remove the brake pads and hardware

• Pull the brake pads out of the caliper bracket.
• Use a flat-blade screwdriver to remove the pad clips if they stay in the bracket.
• Note how the hardware sits before removing it.

Step 4: Remove the caliper bracket

• Use an 18mm socket to remove the two caliper bracket bolts.
• Remove the bracket from the knuckle.
• Torque on installation: 175 Nm (129 ft-lbs).

Step 5: Remove the rotor

• Pull the rotor straight off the hub.
• If it is stuck, spray penetrating oil at the hub center and tap the rotor hat with a rubber mallet.
• Use a wire brush to clean rust from the hub face.
• Clean hub faces help prevent brake shake.

Step 6: Install the new rotor

• Spray the new rotor with brake cleaner spray and wipe it dry.
• Install the rotor on the hub.
• If the rotor has a retaining screw, reinstall it if equipped.

Step 7: Install the bracket and hardware

• Reinstall the caliper bracket using the 18mm socket.
• Torque to 175 Nm (129 ft-lbs).
• Install the new pad hardware kit in the bracket.
• Apply a thin coat of brake grease to the slide points, not the pad friction surface.

Step 8: Install the new pads

• Place the new pads into the bracket.
• If the pads have wear indicators, install them in the same position as the originals.
• Make sure the pads sit fully in the clips.

Step 9: Compress the caliper piston

• Use a C-clamp or brake caliper compression tool to slowly push the caliper piston back in.
• Compress it evenly and check the brake fluid reservoir as you go.
• If fluid rises too high, remove a small amount with a clean turkey baster or fluid syringe.
• Go slow to avoid damaging seals.

Step 10: Reinstall the caliper

• Set the caliper over the new pads and rotor.
• Install the slide pin bolts with the 15mm socket.
• Torque to 42 Nm (31 ft-lbs).
• Make sure the caliper moves freely on the slide pins.

Step 11: Reinstall the wheel

• Put the wheel back on and hand-start the lug nuts.
• Lower the truck enough for the tire to touch the ground.
• Use a 21mm socket and torque wrench to tighten the lug nuts in a star pattern.
• Torque to 190 Nm (140 ft-lbs).

Step 12: Repeat on the other side

• Do the same steps on the opposite front wheel.
• Replace both rotors and both pad sets together.

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✅ After Repair

• Before driving, pump the brake pedal several times until it feels firm.
• Check the brake fluid level and top off only if needed.
• Start with a slow test drive in a safe area.
• Listen for rubbing, clicking, or grinding.
• Bed in the new pads and rotors with several moderate stops, then allow them to cool.
• Recheck lug nut torque after 25-50 miles.

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💰 DIY vs Shop Cost

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

DIY Cost: $180-$350 (parts only)

You Save: $270-$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?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.