How to Replace Rear Brake Pads and Rotors on a 2018 Toyota Tundra (DIY Guide)
Step-by-step instructions with tools, parts list, torque specs, parking brake tips, and bed-in procedure
How to Replace Rear Brake Pads and Rotors on a 2018 Toyota Tundra (DIY Guide)
Step-by-step instructions with tools, parts list, torque specs, parking brake tips, and bed-in procedure
🔧 Tundra - Rear Brake Pads & Rotor Replacement
On your Tundra, replacing the rear pads and rotors restores safe stopping power and helps prevent vibration, grinding, and uneven braking. The rear rotors may also “stick” to the hub or be held by the parking brake shoes inside the rotor hat, so a little extra care is normal.
Difficulty Level: Intermediate | Estimated Time: 2-4 hours
⚠️ Safety & Precautions
- ⚠️ Support the truck with jack stands before going under or removing wheels.
- ⚠️ Chock the front wheels; your Tundra’s parking brake acts on the rear brakes.
- ⚠️ Do not press the brake pedal with a caliper removed.
- ⚠️ Brake dust is harmful—use brake cleaner, not compressed air.
- ⚠️ Keep grease off pad friction material and rotor faces.
- ⚠️ Battery disconnect is not required for this job.
🔧 Required Tools
You'll need the following tools for this repair:
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum) - Qty: 2
- Wheel chocks - Qty: 2
- 21mm socket
- 1/2" drive breaker bar
- 1/2" drive torque wrench (20-200 ft-lbs range)
- 14mm socket
- 17mm socket
- Ratchet (1/2" drive)
- Flat-blade screwdriver
- C-clamp (6" minimum)
- Hook/pick tool
- Bungee cord
- Wire brush
- M8 x 1.25 bolts (25-35mm long) - Qty: 2
- Brake parts cleaner
- Disposable gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Rear brake pad set - Qty: 1
- Rear brake rotors - Qty: 2
- Rear brake pad hardware kit (clips/shims) - Qty: 1
- Brake caliper grease (silicone) - Qty: 1
- Brake fluid (DOT 3) - Qty: 1 quart
📋 Before You Begin
- Park on level ground, shift to P, and turn the engine off.
- Release the parking brake fully (on your Tundra it’s the foot pedal/handle system).
- Chock both front wheels.
- Open the hood and check the brake fluid level; as you compress pistons, the level may rise. Remove a little fluid only if it’s near the “MAX” line.
- Do one side at a time. Use the other side as a reference.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Loosen the rear lug nuts
- Use a 21mm socket and breaker bar to crack the lug nuts loose about 1/2 turn while the tire is still on the ground.
Step 2: Lift and support the rear
- Use a floor jack (rated 3-ton minimum) to lift the rear safely.
- Set the truck onto jack stands (rated 3-ton minimum) under the frame.
- Give the truck a gentle shake to confirm it’s stable before removing wheels.
Step 3: Remove the wheels
- Remove the lug nuts using a 21mm socket and remove both rear wheels.
Step 4: Remove the rear caliper (do not let it hang)
- Turn the steering is not applicable; just position yourself for access behind the caliper.
- Remove the caliper slide pin bolts using a 14mm socket.
- Lift the caliper off the bracket and suspend it with a bungee cord.
- Never hang a caliper by the hose.
Step 5: Remove the old pads and hardware
- Slide the pads out of the bracket by hand; if they’re stuck, use a flat-blade screwdriver gently.
- Remove pad clips/shims using a hook/pick tool if needed.
- Clean the bracket pad lands (where the pad “ears” slide) using brake parts cleaner and a wire brush.
Step 6: Compress the caliper piston
- Use a C-clamp (6" minimum) to slowly press the caliper piston back into the caliper.
- Go slowly and watch the brake fluid reservoir level under the hood.
- Slow pressure prevents seal damage.
Step 7: Remove the caliper bracket
- Remove the caliper bracket bolts using a 17mm socket and ratchet (1/2" drive).
- Set the bracket aside.
- Torque to 104 Nm (77 ft-lbs) during reassembly.
Step 8: Remove the rotor (and free it if stuck)
- Pull the rotor straight off the hub.
- If the rotor is stuck to the hub, thread two M8 x 1.25 bolts (25-35mm long) into the rotor’s jacking holes evenly, alternating turns until the rotor “pops” free.
- If the rotor won’t come off, the parking brake shoes may be holding it. Remove the rubber access plug (if present) and use a flat-blade screwdriver to back off the star wheel adjuster slightly, then try again.
Step 9: Prep and install the new rotor
- Clean the hub face with a wire brush so the rotor sits flat.
- Clean the new rotor faces with brake parts cleaner to remove protective oil.
- Install the new rotor onto the hub.
Step 10: Reinstall the bracket and install new pad hardware
- Reinstall the caliper bracket and tighten bolts using a 17mm socket.
- Torque to 104 Nm (77 ft-lbs).
- Install new pad clips/shims from the hardware kit.
- Apply a thin layer of brake caliper grease (silicone) to the pad ears where they slide on the clips (keep grease off the pad friction surface).
Step 11: Install the new pads and reinstall the caliper
- Install the new pads into the bracket by hand.
- Place the caliper over the pads.
- Install and tighten the slide pin bolts using a 14mm socket.
- Torque to 34 Nm (25 ft-lbs).
Step 12: Repeat on the other rear wheel
- Repeat Steps 4 through 11 on the opposite side.
Step 13: Reinstall wheels and torque lug nuts
- Install wheels and hand-thread lug nuts.
- Lower the truck to the ground using the floor jack (rated 3-ton minimum).
- Tighten lug nuts in a star pattern using a torque wrench (20-200 ft-lbs range).
- Torque to 131 Nm (97 ft-lbs).
Step 14: Set pedal feel and verify parking brake
- With the engine off, pump the brake pedal 10–15 times until it feels firm.
- Check brake fluid level and top off with brake fluid (DOT 3) if needed.
- Test the parking brake operation. If it feels weak after rotor replacement, the drum-in-hat parking brake may need adjustment (star wheel through the access hole) until you get a slight drag, then back off slightly.
✅ After Repair
- Do a slow test drive in a safe area. Confirm no grinding, pulling, or pedal sinking.
- Perform a gentle bed-in: make 6–10 moderate stops from ~30–40 mph, letting brakes cool a bit between stops.
- Re-check lug nut torque with a torque wrench after 50–100 miles.
- Look around both rear calipers for any brake fluid seepage.
💰 DIY vs Shop Cost
Shop Cost: $500-$900 (parts + labor)
DIY Cost: $180-$450 (parts only)
You Save: $320-$450 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-3 hours.
🎯 Ready to get started?
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