F-150 - Front Brake Pad Replacement 🛠️

I’ll walk you through the exact process for your Lariat 4WD with the 5.0. We’ll do one side at a time so you can use the other as a reference.

Parts, Specs, and Notes 📦

• 🧩 Front brake pads: 2015–2020 F-150 uses dual-piston front calipers. Choose pads that match your build with/without tow package. Most Lariats use the 13.8 in (351 mm) rotor system. If unsure, measure rotor diameter or share your axle/tow package details.
• 🧩 Pad hardware kit: New stainless abutment clips and anti-rattle springs (recommended).
• 🧴 Synthetic brake grease: For pad ears and hardware contact points (never on friction surfaces).
• 🧪 Brake cleaner: Chlorinated or non-chlorinated, for cleaning rotors and caliper bracket.
• 🧯 DOT 4 brake fluid: Ford specifies DOT 4 for optimal performance on this generation; top up only if needed.
• ⚙️ Torque specs (front):
  • Lug nuts: 150 lb-ft
  • Caliper guide pin bolts: 27 lb-ft
  • Caliper bracket bolts: 184 lb-ft
  • Banjo bolt (if opening hose): 35 lb-ft with new copper washers
  • Wheel hub-centric rust ring cleanup: not a torque—just clean surface

Tools You’ll Need 🔧

• 🧰 Floor jack and jack stands: Support the truck safely at the frame. Never rely on the jack alone.
• 🛡️ Wheel chocks: Blocks that keep the truck from rolling.
• 🔩 Socket set:
  • 21 mm deep socket (lug nuts)
  • 13 mm or 14 mm socket (caliper slide pin bolts; most are 13 mm)
  • 21 mm or 22 mm socket (caliper bracket bolts; many are 21 mm)
  • Breaker bar or impact for bracket bolts
• 🧲 Torque wrench: One that reaches 184 lb-ft for bracket bolts, and another or the same for 27 lb-ft pins.
• 🧵 Hex/torx key if your slide pins require hold-back (some use a flat to counter-hold; many do not on this truck).
• 🗜️ Disc brake spreader or large C-clamp: Tool that pushes the caliper piston back in.
• 🪛 Flat screwdriver or small pry bar: To ease the caliper off.
• 🧼 Wire brush and small file: To clean the bracket where pad clips sit.
• 🧤 Nitrile gloves and safety glasses.
• 🧵 Mechanic’s wire or bungee: To hang the caliper so the hose isn’t stressed.

Safety First ⚠️

• 🛑 Work on a flat surface, set the parking brake, chock rear wheels.
• 🧯 Don’t open the brake hose. If you must, replace copper washers and torque the banjo bolt to spec.
• 🧪 Brake fluid removes paint. Wipe spills right away.
• 🔥 Rotors and calipers can be hot after driving. Let them cool.

Prep 👇

• 🧰 With the truck on the ground, break the front lug nuts loose (about a 1/2 turn).
• 🪜 Jack under the front frame lift points and set jack stands. Remove wheels.
• 🧴 Turn the steering knuckle to give yourself access (turn left to work right side, and vice versa).

Step-by-Step Procedure 🧑‍🏫

• 🧷 Inspect: Note pad wear and rotor condition. Deep grooves, cracks, or below min thickness? Replace rotors in pairs.
• 🧲 Remove caliper:
  • Remove the two caliper guide pin bolts (13 mm typical). Hold the pin if it wants to spin.
  • Lift the caliper off. Use wire/bungee to hang it from the spring—don’t let it hang by the hose.
• 📦 Remove old pads and hardware:
  • Slide out the inner and outer pads.
  • Pry off the stainless abutment clips from the bracket. These are the pad “seats.”
• 🧽 Clean and prep bracket:
  • Wire-brush the lands where the clips sit until shiny metal. Rust here causes tight pads.
  • Snap in new clips from the hardware kit. Make sure they sit flat.
  • Apply a thin film of brake grease on the clip surfaces where the pad ears touch. No grease on pad faces or rotor.
• 🧪 Retract pistons:
  • Pop the master cylinder cap. Place a rag around it to catch any overflow.
  • Use the C-clamp/spreader and an old pad to slowly push the caliper pistons fully back. Your caliper is dual-piston—keep the tool centered so both retract evenly.
• 🧩 Install new pads:
  • Place the pad with the spring clip or shim ears on the inner side if your set is sided; otherwise they’re interchangeable. Follow the pad kit’s orientation marks.
  • Ensure pads slide freely in the clips. If not, remove and file rust scale on the bracket ends lightly.
• 🔧 Reinstall caliper:
  • Position the caliper over the new pads.
  • Apply a touch of grease to the guide pin sleeves if dry. Reinstall guide pin bolts and torque to 27 lb-ft.
• 🪨 Bracket/rotor service (if removing bracket):
  • If you’re replacing rotors, remove the two caliper bracket bolts (usually 21 mm) and torque on reassembly to 184 lb-ft.
  • Clean the hub face and rotor hat with a wire brush, then spray rotor friction faces with brake cleaner before fitting.
• 🚗 Reinstall wheel:
  • Mount wheel, snug lugs in a star pattern.
  • Lower the truck. Torque lugs to 150 lb-ft in a star pattern.
• 🫧 Finalize:
  • Refit master cylinder cap. Top with DOT 4 if needed. Do not overfill.
  • Pump the brake pedal until firm before moving the truck.
  • Bed-in the pads: 5–8 medium stops from 40–10 mph with cool-down time between. Avoid hard stops or holding the pedal when hot for the first 200 miles.

Tips & Tricks 💡

• 🧰 Stuck caliper bracket bolts? Use a breaker bar and penetrating oil. Support the wrench so you don’t round the head.
• 🧊 Squeal prevention: Clean the rotor faces thoroughly and ensure pads float freely in clips. A light smear of grease on pad ears only.
• 🧪 If the fluid reservoir overflows while compressing pistons, use a clean turkey baster to remove a little fluid. Brake fluid only—discard after.
• 🧭 Replace pads and rotors in pairs (both fronts) for even braking.

Quick Check ✅

• 🧩 Do you know if your truck has the Max Trailer Tow Package or Heavy-Duty Payload Package? This affects rotor size and pad selection.
• 🛠️ Do you plan to replace rotors too? If yes, I’ll include rotor minimum thickness and fastener sizes for your exact setup.

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