🔧 Sierra 1500 - Rear Brake Pad Replacement

Your Sierra 1500’s rear brake pads clamp the rear rotors to slow the truck down. Replacing worn pads restores safe stopping and prevents rotor damage and grinding noises.

Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours

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⚠️ Safety & Precautions

• ⚠️ Work on level ground and chock the front wheels so the truck can’t roll.
• ⚠️ Make sure the parking brake is fully released before starting (rear pads won’t come off correctly if it’s applied).
• ⚠️ Support the truck with jack stands; never rely on a floor jack alone.
• ⚠️ Do not press the brake pedal while a caliper is off the rotor.
• ⚠️ Brake dust is unhealthy—use brake cleaner, not compressed air.

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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
• 22mm socket
• 3/8" drive ratchet
• 1/2" drive breaker bar
• 13mm socket
• 18mm socket
• Torque wrench (20-200 ft-lbs range)
• C-clamp (6" minimum)
• Bungee cord
• Wire brush
• Small flathead screwdriver
• Brake parts cleaner
• Disposable 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 - Qty: 1
• Brake caliper grease (silicone) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• Park on a flat surface, shift to Park, and fully release the parking brake.
• Chock both front wheels with wheel chocks.
• Break the rear lug nuts loose 1/2 turn with a 22mm socket and breaker bar before lifting.
• Open the hood and remove the brake fluid reservoir cap (set it back on loosely). This helps fluid return when you push the piston in.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the rear of the truck

• Lift one rear corner with a floor jack (rated 3-ton minimum) under a solid jacking point.
• Set the frame onto a jack stands (rated 3-ton minimum) and gently lower the truck onto the stand.
• Repeat on the other rear side if you want both rear wheels off the ground.

Step 2: Remove the rear wheel

• Remove the lug nuts using a 22mm socket and ratchet.
• Remove the wheel and set it flat under the truck as an extra safety backup.

Step 3: Locate the caliper and inspect everything

• Look at pad thickness and the rotor surface.
• If the rotor is deeply grooved or heavily rust-lipped, consider replacing the rear rotors too.
• Take a quick photo before disassembly.

Step 4: Remove the caliper bolts

• Turn the steering wheel is not needed on the rear; just position yourself for access.
• Remove the two caliper guide pin bolts using a 13mm socket and ratchet.
• Carefully lift the caliper off the rotor.
• Hang the caliper from the suspension using a bungee cord so it doesn’t hang by the brake hose.
• Torque spec (install later): Torque to 31 Nm (23 ft-lbs)

Step 5: Remove the old pads and hardware

• Slide the inner and outer pads out of the bracket by hand (use a small flathead screwdriver gently if they’re stuck).
• Remove the stainless pad clips (hardware) from the bracket.
• Clean the bracket pad-contact areas with brake parts cleaner and a wire brush.

Step 6: Compress the caliper piston

• Place the old inner pad against the caliper piston face.
• Use a C-clamp (6" minimum) to slowly push the piston back into the caliper bore. A C-clamp is a screw clamp that presses the piston in evenly.
• Go slowly and watch the brake fluid reservoir—if it gets too full, remove a little fluid (don’t spill on paint).

Step 7: Install new pad hardware and pads

• Install the new pad clips from the rear brake pad hardware kit into the caliper bracket.
• Apply a thin film of brake caliper grease (silicone) where the pad “ears” slide on the clips.
• Install the new inner and outer pads into the bracket in the same positions as the old ones.
• Only grease metal-to-metal contact points.

Step 8: Reinstall the caliper

• Set the caliper back over the new pads and rotor.
• Start both guide pin bolts by hand to avoid cross-threading.
• Tighten the guide pin bolts using a 13mm socket and torque wrench.
• Torque to 31 Nm (23 ft-lbs)

Step 9: Reinstall the wheel

• Reinstall the wheel and hand-thread the lug nuts.
• Snug the lug nuts in a star pattern using a 22mm socket.
• Lower the truck off the jack stands (rated 3-ton minimum) using the floor jack (rated 3-ton minimum).
• Final-tighten lug nuts in a star pattern with a torque wrench (20-200 ft-lbs range).
• Torque to 190 Nm (140 ft-lbs)

Step 10: Repeat on the other rear side

• Do the same pad replacement steps on the other rear wheel.
• Always replace pads as a left-right pair.

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✅ After Repair

• With the engine off, 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 if needed.
• Do a careful test drive: start with low-speed stops and listen for abnormal noises.
• Pad bed-in: make 6-10 smooth stops from ~30 mph to 5 mph, with cool-down driving between stops (don’t hold the pedal hard at a complete stop right after).

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💰 DIY vs Shop Cost

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

DIY Cost: $60-$150 (parts only)

You Save: $100-$300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3 hours.

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🎯 Ready to get started?

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