🔧 3500 - Rear Brake Pads & Rotor Replacement

You’ll be replacing the rear brake pads and rotors on your 3500, then verifying the parking brake (drum-in-hat style) isn’t dragging or too loose. Worn pads/rotors can cause noise, vibration, longer stopping distance, and uneven braking.

Difficulty Level: Intermediate | Estimated Time: 2.0-4.0 hours

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⚠️ Safety & Precautions

• ⚠️ Support the truck with jack stands before working underneath.
• ⚠️ Do not press the brake pedal with a caliper removed.
• ⚠️ Brake dust is harmful—use brake cleaner, not compressed air.
• ⚠️ Keep the parking brake fully released during disassembly.
• ⚠️ If brake fluid level is near “MAX,” it may rise when compressing pistons—watch for overflow.

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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
• Safety glasses
• Nitrile gloves
• 22mm socket
• 1/2" breaker bar
• 1/2" torque wrench (50–250 ft-lbs range)
• 13mm socket
• 21mm socket
• Ratchet (3/8" or 1/2")
• Flat-blade screwdriver
• C-clamp (6" minimum)
• Bungee cord
• Wire brush
• Dead-blow hammer

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake rotors - Qty: 2
• Brake cleaner - Qty: 1
• Silicone brake lubricant - Qty: 1
• DOT 3 brake fluid - Qty: 1 bottle

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📋 Before You Begin

• Park on level ground, shift to Park, and chock the front wheels with wheel chocks.
• Release the parking brake полностью (your 3500 uses a cable-operated parking brake integrated into the rear rotor “hat”).
• Crack the rear lug nuts loose 1/2 turn using a 22mm socket and breaker bar before lifting.
• Open the hood and check brake fluid level in the reservoir so it won’t overflow when you compress pistons.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and support the rear

• Use a floor jack (rated 3-ton minimum) to lift the rear axle, then set the truck onto jack stands (rated 3-ton minimum).
• Give the truck a firm shake to confirm it’s stable before you continue.

Step 2: Remove the rear wheels

• Remove lug nuts using a 22mm socket and ratchet or breaker bar.
• Set wheels aside flat so they can’t roll.

Step 3: Remove the rear caliper

• Turn the steering wheel is not needed for the rear, but rotate the hub by hand to access bolts comfortably.
• Remove the caliper slide bolts using a 13mm socket and ratchet.
• Lift the caliper off the bracket and support it with a bungee cord so the brake hose is not stretched.
• Never let a caliper hang by the hose.

Step 4: Remove pads and inspect hardware

• Slide the old pads out by hand. If they’re stuck, use a flat-blade screwdriver gently.
• Inspect the pad abutment clips (the thin metal clips the pads slide on). Replace if damaged (often included with pads).

Step 5: Remove the caliper bracket

• Remove the caliper bracket bolts using a 21mm socket and breaker bar.
• Set the bracket aside.
• Torque to 250 Nm (184 ft-lbs) on installation.

Step 6: Remove the rotor

• If the rotor is stuck, tap around the rotor “hat” with a dead-blow hammer to break it free.
• If it still won’t come off, the parking brake shoes may be holding it:
  • Use a flat-blade screwdriver to back off the star-wheel adjuster (through the access hole in the backing plate, if equipped).
  • Try removing the rotor again.

Step 7: Prep the hub and install the new rotor

• Clean the hub face with a wire brush so the rotor sits flat.
• Spray the new rotor braking surfaces with brake cleaner and wipe clean (removes shipping oil).
• Install the new rotor onto the hub.

Step 8: Set the parking brake shoe clearance (drum-in-hat)

• With the rotor installed, spin it by hand.
• If you adjusted the star wheel earlier (or replaced rotors), set it so the rotor spins freely with a very slight, even drag.
• Use a flat-blade screwdriver at the star wheel access to fine-tune.

Step 9: Reinstall the caliper bracket and new pads

• Reinstall the caliper bracket and tighten bolts using a 21mm socket and torque wrench.
• Torque to 250 Nm (184 ft-lbs)
• Apply a thin layer of silicone brake lubricant where the pad ears contact the clips (not on pad friction material).
• Install the new pads into the bracket by hand.

Step 10: Compress the caliper piston and reinstall caliper

• Place an old pad against the piston, then compress the piston slowly using a C-clamp (6" minimum).
• Go slow to avoid overflowing the reservoir.
• Set the caliper over the new pads and install slide bolts using a 13mm socket and torque wrench.
• Torque to 35 Nm (26 ft-lbs)

Step 11: Reinstall wheels and torque lug nuts

• Install wheels and hand-start lug nuts.
• Lower the truck until the tires just touch the ground, then torque lugs in a star pattern using a 22mm socket and torque wrench:
• SRW: 176 Nm (130 ft-lbs)
• DRW: 190 Nm (140 ft-lbs)

Step 12: Repeat on the other rear side

• Repeat Steps 2–11 for the opposite rear wheel.

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✅ After Repair

• With the truck still in Park, pump the brake pedal 10–15 times until it feels firm (this seats the pistons).
• Check brake fluid level and top off with DOT 3 brake fluid if needed.
• Test the parking brake: it should hold the truck on a slight incline and fully release without dragging.
• Road test at low speed first, then do a gentle bedding-in: 6–10 moderate stops from 30–40 mph, allowing short cool-down between stops.
• Re-torque lug nuts after 25–50 miles using a torque wrench.

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💰 DIY vs Shop Cost

Shop Cost: $650-$1,100 (parts + labor)

DIY Cost: $280-$650 (parts only)

You Save: $370-$450 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.0-3.0 hours.

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🎯 Ready to get started?

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