Essential Tools:
* Jack and Jack Stands: Crucial for safely lifting the vehicle. Use jack stands, *never* work under a vehicle supported only by a jack.
* Wheel Chocks: To prevent the vehicle from rolling.
* Lug Wrench: To remove the wheel.
* Impact Wrench (Highly Recommended): Makes removing the ball joint nut and other fasteners significantly easier. A breaker bar and socket might work, but an impact wrench saves time and effort.
* Ball Joint Separator: This tool is specifically designed to separate the ball joint from the control arm. There are several types; a pickle fork is a cheaper alternative, but it can damage the control arm. A ball joint press is the safest option.
* Sockets and Wrenches (Metric): You'll need a variety of sizes, likely including those for the ball joint nut, control arm bolts, and possibly sway bar link fasteners. A socket set is recommended.
* Penetrating Oil (PB Blaster or similar): Spray this on the fasteners several hours (or even overnight) before you start working to help loosen rusted or seized components.
* Torque Wrench: Essential for tightening the new ball joint to the manufacturer's specifications. This prevents premature failure and ensures proper handling.
* Hammer (Ball-peen or similar): May be needed to help separate stubborn components.
* Pry Bar: Could be useful for additional leverage in some situations.
* Grease: To lubricate the new ball joint.
Optional but Helpful Tools:
* Air Compressor: If you're using an impact wrench, you'll need this.
* Ratchet and Extensions: Make accessing tight fasteners easier.
* Shop Manual (specifically for your year and model LeSabre): Provides detailed diagrams and torque specifications. This is invaluable.
* Safety Glasses and Gloves: Always protect yourself.
Important Note: Replacing a lower ball joint is a technically demanding job that requires careful attention to detail. If you're not comfortable working on your car, or you lack the necessary experience, it's highly recommended to take it to a qualified mechanic. Improper installation can lead to dangerous handling issues. Always consult your vehicle's repair manual for specific procedures and torque specifications.