Tools You'll Likely Need:
* Jack and jack stands: Essential for safely lifting the vehicle.
* Wheel chocks: To prevent the vehicle from rolling.
* Socket set (metric): Various sizes will be needed.
* Wrench set (metric): Again, various sizes.
* Ball joint separator: To separate the ball joint from the steering knuckle. A pickle fork can work, but a ball joint separator is safer and less likely to damage components.
* Bushings press (or suitable alternatives): This is arguably the most crucial tool. You'll need a press to remove the old bushings and install the new ones. Improper pressing can easily damage the control arm. Alternatives include a shop press, a C-clamp setup with proper support, or even a large socket and hammer (though this is less precise and riskier).
* Hammer: For some parts of disassembly and potentially the alternative bushing press method.
* Penetrating oil (like PB Blaster): To help loosen rusted bolts and bushings.
* Torque wrench: Crucial for tightening bolts to the manufacturer's specifications.
* Safety glasses and gloves: Always wear appropriate safety gear.
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks. Raise the vehicle safely using a jack and secure it with jack stands.
2. Disconnect Components: This typically involves disconnecting the sway bar link, removing the cotter pin and nut from the ball joint, and potentially disconnecting the ABS sensor wire (if equipped).
3. Separate Ball Joint: Carefully use the ball joint separator to separate the ball joint from the steering knuckle. This often requires significant force.
4. Remove Upper Control Arm: Once the ball joint is separated, you should be able to remove the upper control arm bolts. These can be quite stubborn due to rust and corrosion. Penetrating oil is your friend here.
5. Bushings Removal: This is where the bushing press is absolutely necessary. Use the press to carefully remove the old bushings from the control arm. This often requires patience and precision to avoid damage.
6. Bushings Installation: Use the press again to carefully install the new bushings into the control arm. Ensure they're seated properly and evenly.
7. Reassembly: Reinstall the upper control arm, making sure to tighten all bolts to the correct torque specifications (consult your repair manual). Reconnect the ball joint, sway bar link, and any other disconnected components.
8. Lower Vehicle: Carefully lower the vehicle from the jack stands.
9. Alignment: After replacing the bushings, it's crucial to have your vehicle's alignment checked and adjusted by a professional. Incorrect alignment can lead to premature tire wear and dangerous handling.
Important Considerations:
* Rust and Corrosion: On older S10 Blazers, rust and corrosion are common issues that can make this job significantly more difficult. Be prepared for broken bolts and stubborn components.
* Bushings Type: Ensure you purchase the correct type of upper control arm bushings for your specific vehicle year and model.
* Pressing Technique: Using an inappropriate method for removing and installing the bushings can damage the control arm. A shop press is always recommended.
This is a complex repair job. If you are not comfortable with automotive repair, it's strongly recommended to take your vehicle to a qualified mechanic. Improper installation can compromise your vehicle's safety and handling.
