Essential Tools:
* Socket Set: A complete set with both metric and SAE sockets, including deep sockets, is crucial. You'll need sockets for various bolt sizes, including those securing the caliper, rotor, axle nut, and possibly others.
* Wrench Set: Similar to the socket set, a comprehensive set of both metric and SAE wrenches is essential for various nuts and bolts. Box-end and open-end wrenches will be helpful.
* Impact Wrench (highly recommended): The axle nut is notoriously tight. An impact wrench will save you significant time and effort, and is practically indispensable for this job. A breaker bar and a lot of leverage *can* work, but it's much more difficult and risky for damage.
* Wheel Chocks: Absolutely necessary for safety.
* Jack and Jack Stands: Safely lift and support the vehicle. Never work under a vehicle supported only by a jack.
* Lug Wrench: To remove the wheel.
* Torque Wrench: Essential for properly tightening components to the manufacturer's specifications to prevent damage and ensure safety. Get a torque wrench with a wide range of torque settings.
* Hammer: For possibly tapping things loose. A rubber mallet is preferable for less chance of damaging parts.
* Pry Bar: Might be needed to separate components.
* Penetrating Oil (like PB Blaster): Apply generously to bolts before attempting to remove them. This will help prevent stripping.
* Hub Bearing Removal and Installation Tool: This is a specialized tool and is absolutely essential for safely removing and installing the new bearings. It's a press-type tool, not something you can improvise. These tools can vary depending on the specific type of bearing in your Blazer, so verify compatibility before purchase.
* Clean Rags and Shop Towels: For cleaning parts and catching grease.
* Grease: Pack the new bearings with appropriate grease.
* New Hub Bearings: Obviously! Make sure you get the correct part number for your specific vehicle.
Optional but Helpful Tools:
* Ball Joint Separator: To separate the ball joint from the control arm if necessary (this varies depending on the exact Blazer model).
* Caliper Compression Tool: To compress the caliper piston to allow for rotor removal.
* Brake Caliper Hanger: To secure the caliper out of the way.
Important Considerations:
* Consult a Repair Manual: A Haynes or Chilton repair manual specific to your 2001 Chevy Blazer 4x4 is invaluable. It will provide detailed instructions and torque specifications.
* Safety First: Always prioritize safety. Use jack stands, chocks, and work in a well-lit area. Wear safety glasses.
* Professional Help: If you're not comfortable working on your vehicle, consider taking it to a professional mechanic. Improperly installed bearings can be dangerous.
The cost of the specialized tools (especially the hub bearing tool) might be significant. If you only plan to do this job once, it may be cheaper to have a mechanic do it. If you plan to do more vehicle maintenance, investing in the tools will pay off in the long run.
