🔧 F-150 - Front Wheel Bearing/Hub Replacement

On your F-150 4WD, the front wheel bearing is part of a bolt-in hub/bearing assembly. Replacement means removing the brake parts, removing the axle nut, unbolting the hub from the steering knuckle, and installing the new hub.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours (one side)

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⚠️ Safety & Precautions

• ⚠️ Support the truck with jack stands on the frame; never rely on a jack.
• ⚠️ Chock the rear wheels and keep the transmission in Park.
• ⚠️ Do not let the brake caliper hang by the hose—support it with a hanger.
• ⚠️ Wear eye protection; rust scale falls when the hub breaks loose.
• ⚠️ Keep the 4WD hub area clean; avoid pulling/damaging the IWE vacuum line (the small vacuum line at the front hub).
• 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 (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• Breaker bar (1/2-inch drive)
• Torque wrench (30-300 ft-lbs range)
• 21mm socket
• 13mm socket
• 18mm socket
• 36mm socket
• 13mm 12-point socket
• 15mm 12-point socket
• Ratchet (1/2-inch drive)
• Ratchet (3/8-inch drive)
• Flat-blade screwdriver
• Pry bar
• Dead-blow hammer
• Wire brush
• Bungee cord or mechanic wire hanger
• Penetrating oil
• Hub puller/slide hammer kit (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front wheel hub/bearing assembly - Qty: 1 (replace in pairs recommended)
• Front axle nut - Qty: 1
• Brake cleaner - Qty: 1
• Anti-seize compound - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear tires.
• Crack the front lug nuts loose 1/2 turn using a 21mm socket and breaker bar before lifting.
• Spray penetrating oil where the hub meets the knuckle and on the hub bolts from behind; let it soak while you set up.
• Tip: Take a photo of hose/ABS wire routing.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and remove the wheel

• Lift the front corner with a floor jack and support it with jack stands.
• Remove the lug nuts using a 21mm socket, then remove the wheel.

Step 2: Remove the brake caliper and bracket

• Remove the caliper slide bolts using a 13mm socket.
• Lift the caliper off the rotor and hang it using a bungee cord or mechanic wire hanger.
• Remove the caliper bracket bolts using an 18mm socket.
• Torque to 200 Nm (148 ft-lbs) when reinstalling the caliper bracket bolts.
• Tip: Don’t twist the brake hose.

Step 3: Remove the brake rotor

• Slide the rotor off by hand. If stuck, tap around the hat with a dead-blow hammer.
• If rusted heavily, use a wire brush to clean the hub face area.

Step 4: Remove the axle nut

• Remove the axle nut using a 36mm socket and breaker bar.
• Torque to 250 Nm (184 ft-lbs) when installing the new axle nut.
• Use a flat-blade screwdriver to gently help keep the hub from turning if needed.

Step 5: Unbolt the hub/bearing assembly from the knuckle

• From behind the steering knuckle, remove the hub bolts using a 13mm 12-point socket or 15mm 12-point socket (use the one that fits snug).
• Torque to 180 Nm (133 ft-lbs) when reinstalling the hub bolts.
• Be careful around the small vacuum line/connection at the hub area (IWE line). Move it aside gently if it’s in the way.

Step 6: Break the hub loose and remove it

• If the hub is stuck in the knuckle from rust, thread two lug nuts on backward (to protect the studs) using a 21mm socket.
• Tap the hub flange evenly with a dead-blow hammer, or use a hub puller/slide hammer kit (specialty) to pull it free.
• Once loose, pull the hub straight off the axle splines.

Step 7: Clean mounting surfaces

• Clean the knuckle bore and hub mating surface using a wire brush and brake cleaner.
• Apply a very thin film of anti-seize compound to the knuckle bore (not on the brake rotor surface).

Step 8: Install the new hub/bearing assembly

• Slide the new hub onto the axle splines by hand, keeping it square.
• Install the hub bolts by hand first, then tighten using the 13mm 12-point socket or 15mm 12-point socket.
• Torque to 180 Nm (133 ft-lbs).
• Install the new axle nut using a 36mm socket.
• Torque to 250 Nm (184 ft-lbs).

Step 9: Reinstall rotor, bracket, and caliper

• Reinstall the rotor by hand.
• Reinstall the caliper bracket bolts using an 18mm socket.
• Torque to 200 Nm (148 ft-lbs).
• Reinstall the caliper slide bolts using a 13mm socket.
• Torque to 35 Nm (26 ft-lbs).

Step 10: Reinstall wheel and lower the truck

• Reinstall the wheel and hand-tighten lug nuts.
• Lower the truck off the jack stands using the floor jack.
• Tighten lug nuts in a star pattern using a torque wrench.
• Torque to 203 Nm (150 ft-lbs).

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✅ After Repair

• Press the brake pedal slowly 5-10 times until it feels firm (this seats the caliper pistons).
• Test drive at low speed first, listening for grinding/clicking and checking for steering pull.
• After the test drive, recheck for any brake fluid seepage and verify lug nut torque is still correct.
• If 4WD makes a grinding/ratcheting noise after this job, inspect the IWE vacuum line connection at the hub area.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor, one front side)

DIY Cost: $120-$300 (parts only, one front side)

You Save: $330-$600 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?

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