Essential Tools:
* Jack and Jack Stands: Absolutely crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel Chocks: To secure the rear wheels.
* Lug Wrench: To remove the wheel.
* Socket Set (Metric): You'll need a variety of sizes, likely ranging from 10mm to 19mm or even larger, depending on the specific fasteners on your Avalanche. A ratcheting wrench will save time and effort.
* Torque Wrench: Essential for tightening bolts to the manufacturer's specifications (found in your service manual). Improper torque can damage components.
* Wheel Hub Nut Socket: This is often a large, deep socket specifically designed for the wheel hub nut. The size will be specified in your service manual. This might be a 36mm or larger. An impact wrench is highly recommended for this step.
* Hammer: A ball-peen hammer or a rubber mallet might be needed for some parts of the job.
* Pry Bar: May be helpful for separating parts.
* Penetrating Oil (PB Blaster or similar): Apply this to any rusted or stuck bolts before attempting to remove them. Let it soak for a while.
* Press (or Bearing Separators): This is crucial for removing the old bearing and installing the new one. A press is ideal, but various bearing separator tools are available. Improper removal can easily damage the new bearing.
* New Front Wheel Bearing Assembly: Make sure you get the correct part number for your specific Avalanche.
* Clean Rags or Shop Towels: For cleaning parts.
* Grease: Pack the new bearing with the appropriate grease.
* Service Manual (Highly Recommended): A factory service manual or a reputable repair manual specific to your year and model Avalanche will provide detailed instructions, torque specifications, and diagrams.
Potentially Useful Tools:
* Impact Wrench: Highly recommended for the wheel hub nut. It makes the job significantly easier.
* Air Compressor (if using an impact wrench): To power the impact wrench.
* C-Clamp: Can sometimes be used as a makeshift press in simpler situations, but a dedicated press or bearing separator tools are preferable.
* Needle-nose pliers: Useful for various small tasks.
* Safety Glasses and Gloves: Always wear appropriate safety gear.
Important Note: Replacing wheel bearings is a relatively complex repair. If you're not comfortable working on vehicles, it's best to have a qualified mechanic perform this repair. Incorrect installation can lead to serious safety hazards. Always consult your service manual for specific instructions and torque specifications for your vehicle.
