Here's a general outline of the process. Remember that this is a simplified guide and specific procedures might vary slightly. Always consult a repair manual specific to your 1991 Geo Prizm for detailed instructions and torque specifications.
Tools You'll Need:
* Jack and jack stands: Essential for safe lifting of the vehicle.
* Wheel chocks: Crucial for safety.
* Lug wrench: To remove the wheels.
* Ball joint separator: To separate the ball joint from the control arm. A pickle fork can work, but a ball joint separator is less damaging.
* Tie rod end separator: Similar to a ball joint separator, but for the tie rod end.
* CV joint removal tool: This specialized tool makes removing the CV joint from the transmission or differential much easier. Improvised methods exist, but they risk damage.
* Hammer and punches: May be needed for stubborn components.
* Socket set and wrenches: A variety of sizes.
* Penetrating oil (like PB Blaster): To loosen rusted bolts and joints.
* New CV joints: Get the correct ones for your specific vehicle's drive axle.
* Grease: For repacking the new CV joint boots.
* New CV axle boots (if necessary): Check for tears before starting.
* Torque wrench: Crucial for tightening bolts to the correct specification.
Procedure (General Steps – Consult a Repair Manual for Specifics):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks. Raise the vehicle securely using the jack and jack stands.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Disconnect the Brake Caliper: Carefully support the caliper with wire or a bungee cord to prevent it from hanging by the brake line. Remove the caliper bolts and set it aside.
4. Disconnect the Tie Rod End: Use the tie rod end separator to separate the tie rod end from the steering knuckle. Note the position or take a picture before disconnecting.
5. Disconnect the Ball Joint: Use the ball joint separator to separate the ball joint from the control arm. This is often the most difficult part.
6. Remove the Axle Nut: This is usually a large nut on the inner end of the axle shaft. You might need a breaker bar for this.
7. Separate the CV Joint from the Transmission/Differential: Use the CV joint removal tool to separate the CV joint from the transmission (inner joint) or differential (outer joint). This step requires the right tools to avoid damage.
8. Remove the Axle Shaft: Carefully remove the axle shaft from the wheel hub.
9. Installation: Installation is the reverse of removal. Make sure to pack the new CV joint boots with grease and install them correctly. Use the appropriate torque specifications when tightening bolts.
10. Reassemble Everything: Reassemble the components in the reverse order of removal, making sure everything is properly aligned.
11. Lower the Vehicle: Carefully lower the vehicle and tighten the lug nuts.
12. Test Drive: After reassembly, test drive the vehicle to ensure everything is working correctly.
Important Considerations:
* Repair Manual: This process is highly simplified. A repair manual specific to your 1991 Geo Prizm is absolutely necessary for detailed instructions, torque specifications, and diagrams.
* Safety: Working under a car can be dangerous. Always use jack stands and follow proper safety procedures.
* Difficulty: This is not a simple job. If you're not comfortable with automotive repair, take it to a professional mechanic.
* Parts: Ensure you get the correct replacement CV joints and boots for your specific vehicle.
This information is for guidance only. Improper repair can lead to serious injury or damage to your vehicle. Consult a repair manual and consider seeking professional assistance if you're not experienced with automotive repair.
