Tools You'll Likely Need:
* Jack and jack stands: Absolutely essential for safety.
* Wheel chocks: For added safety.
* Socket wrench set (metric): Various sizes will be needed.
* Ratchet and extensions: To reach difficult-to-access bolts.
* Ball joint separator: To separate the ball joint from the steering knuckle. A pickle fork can work but risks damaging the knuckle.
* Bushing removal tool: Specialized tools are available to press out the old bushings. A press is ideal but a socket and hammer can sometimes work, though it's riskier.
* Bushing installation tool: Similarly, a press is best for installing new bushings. Improvised methods risk damaging the bushings.
* Torque wrench: Crucial for properly tightening bolts.
* Penetrating oil (PB Blaster, etc.): Helps loosen rusted bolts.
* Hammer: May be needed for stubborn components.
* Safety glasses and gloves: Always protect yourself.
General Steps (Consult your repair manual for detailed specifics!):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks. Raise the truck securely with a jack and support it on jack stands.
2. Remove the Wheel: Remove the wheel from the side you're working on.
3. Disconnect the Sway Bar Link: Disconnect the sway bar link from the control arm.
4. Disconnect the Ball Joint: Use the ball joint separator to separate the ball joint from the steering knuckle. This usually requires significant force and patience.
5. Remove the Upper Control Arm Bolts: Locate and remove the bolts securing the upper control arm to the frame and the spindle. Penetrating oil may be your best friend here. These bolts can be extremely stubborn due to rust and age.
6. Remove the Upper Control Arm: With the bolts removed, the upper control arm should come loose. It may require some gentle persuasion.
7. Remove the Old Bushings: This is where a bushing removal tool is invaluable. Improvised methods are possible, but they risk damaging the control arm.
8. Install the New Bushings: Use the bushing installation tool to press the new bushings into place. Ensure they are seated correctly and evenly.
9. Reassemble: Reinstall the upper control arm, making sure everything lines up correctly. Tighten the bolts to the manufacturer's specified torque.
10. Reconnect the Ball Joint: Reconnect the ball joint to the steering knuckle.
11. Reconnect the Sway Bar Link: Reattach the sway bar link.
12. Lower the Vehicle: Carefully lower the vehicle to the ground.
13. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts.
14. Torque Check: Double-check all bolts and lug nuts to ensure they are torqued to the correct specification.
15. Test Drive: Test drive the vehicle to ensure everything is working correctly.
Important Considerations:
* Rust: On a 1991 S-10, rust is a significant factor. Expect to use penetrating oil liberally and potentially spend extra time freeing up rusted components.
* Parts: Source high-quality replacement bushings. Cheap replacements might not last long.
* Press: If you lack the specialized tools (especially a press), it's strongly recommended you take the control arm to a professional mechanic. Improvised methods can easily damage the control arm, bushings, or other components.
This is a general guide. Always consult a repair manual specific to your vehicle for detailed instructions and torque specifications. If you're not comfortable with this level of auto repair, take it to a qualified mechanic. Improperly installed control arm bushings can compromise your vehicle's handling and safety.
