Mechanics

Axle Wheel Bearing Hub Replacement

Easy to understand step by step guide on how to replace your automotive axle bearing hub assembly, though appearances may vary, the process is the same on most vehicles.

Difficulty Level - 5

Begin with the vehicle on level ground, lifted on jack stands, when removing the wheel, roll it under the car for additional safety, use a basic set of tools while wearing protective eyewear and gloves.

Step 1 - With the vehicle safely in the air, remove all lug nuts and remove the wheel. (Note: Loosen the lugs one turn while the wheel is still on the ground.)


Remove Wheel

Step 2 - Locate and remove both brake caliper mounting bolts.


Remove Brake Caliper Mounting Bolts

Step 3 - Grasp the brake caliper and remove by rocking it back and forth, place the caliper out of the way and secure it with a zip tie or wire.


Remove Brake Caliper

Step 4 - Gently remove the brake pads while inspecting wear patterns and replace if needed, visit - Replace Front Brake Pads and Rotors


Remove Brake Pads

Step 5 - Loosen then remove the brake caliper mounting bolts, the bracket will become loose so keep your hand on it.


Remove Brake Caliper Mount

Step 6 - Using a hammer, strike the brake rotor between the lugs to shock the rotor from the bearing hub.


Strike Brake Rotor

Step 7 - Locate the ABS wheel sensor wiring harness connector and disconnect (Note: If no sensor is present skip this step).


Remove ABS Wheel Sensor

Step 8 - Next, locate and remove all axle bearing hub mounting bolts, the hub will become loose.


Remove Bearing Hub Mounting Bolts

Step 9 - Match the old bearing assemble to the new unit to ensure a proper installation.


New Axle Bearing Hub

Step 10 - While holding the new axle bearing hub, install by hand all mounting bolts, then tighten to manufacturers specifications (70-80 ft pounds)


Reinstall Axle Bearing Hub Mounting Bolts

Step 11 - Once all hub mounting bolts are tight, reconnect the ABS wheel speed sensor, also remount any wiring clips.


Reconnect ABS Wheel Sensor

Step 12 - While grasping the brake rotor firmly, gently slide it over the wheel studs and back onto the bearing hub.


Reinstall Brake Rotor

Step 13 - Slide the caliper mounting bracket over the rotor and install the mounting bolts by hand.


Reinstall Caliper Mounting Bracket

Step 14 - Tighten the caliper bracket mounting bolts evenly.


Tighten Caliper Mount Bolts

Step 15 - After inspecting the brake pads, reinstall them back onto the rotor.


Reinstall Brake Pads

Step 16 - Gently place the brake caliper over the pads and install the mounting bolts. (Note: The caliper may need to be reset slightly to ease installation.) visit - Reset brake caliper)


Reinstall Brake Caliper

Step 17 - Use a ratchet to tighten the caliper mounting bolts.


Tighten Brake Caliper Mounting Bolts

Step 18 - Reinstall the wheel and hand thread all lug nuts, once on, tighten the lugs in a star pattern to manufacturers specifications (70-80 ft pounds).


Tighten Wheel Lugs

Helpful Information

When an axle bearing hub fails it can make a grinding-squeaking noise which will change when steering the vehicle around a corner, by slightly turning the vehicle one way, then the other, can help determine which bearing has failed.

AUTHOR


Written by
Co-Founder and CEO of 2CarPros.com
35 years in the automotive repair field, ASE Master Technician, Advanced Electrical and Mechanical Theory.


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Article first published (Updated 2015-04-23)