Table of Contents
Installing a Quaife limited-slip differential (LSD) can significantly enhance the handling and performance of your Subaru WRX. This guide provides a step-by-step approach to help you through the installation process.
Tools and Materials Needed
- Quaife Limited-Slip Differential
- Socket set
- Torque wrench
- Jack and jack stands
- Transmission fluid
- Grease
- Safety glasses
- Work gloves
Preparation
Before starting the installation, ensure you have a clean workspace and all necessary tools and materials ready. Safety is paramount, so wear safety glasses and gloves throughout the process.
1. Lift the Vehicle
Use a jack to lift the front of your Subaru WRX and secure it with jack stands. This will provide you with ample space to work underneath the vehicle.
2. Remove the Front Wheels
Take off the front wheels to access the wheel hubs and suspension components. This step is crucial for gaining better access to the differential.
Removing the Old Differential
3. Drain the Transmission Fluid
Locate the transmission fluid drain plug and remove it to allow the fluid to drain completely. This will help prevent spills when removing the differential.
4. Disconnect the Axles
Using your socket set, disconnect the axles from the differential. Be careful to support the axles to prevent damage.
5. Remove the Differential Cover
Take off the differential cover by removing the bolts. Set the cover aside and inspect the old differential for any signs of wear or damage.
6. Extract the Old Differential
Carefully pull out the old differential from the housing. You might need to tap it gently with a rubber mallet if it is stuck.
Installing the Quaife Limited-Slip Differential
7. Prepare the New Differential
Before installation, apply a thin layer of grease to the gears of the Quaife LSD. This will help in smooth operation right from the start.
8. Insert the New Differential
Carefully slide the Quaife LSD into the differential housing. Ensure it fits snugly and aligns properly with the axle input shafts.
9. Reattach the Differential Cover
Once the new differential is in place, reattach the differential cover. Make sure to tighten the bolts to the manufacturer’s specifications.
Reassembly
10. Reconnect the Axles
Reattach the axles to the new differential. Ensure that all bolts are tightened securely to avoid any issues during operation.
11. Replace the Transmission Fluid
Refill the transmission with the appropriate type and amount of fluid as specified in your WRX owner’s manual. This is crucial for the longevity of your new differential.
12. Reinstall the Front Wheels
Put the front wheels back on and tighten the lug nuts to the recommended torque specifications. This will secure the wheels properly for safe driving.
Final Checks
13. Lower the Vehicle
Carefully lower the vehicle from the jack stands and ensure everything is secure before taking it for a test drive.
14. Test Drive
Take your Subaru WRX for a test drive to ensure the new Quaife LSD is functioning properly. Pay attention to the handling and make adjustments if necessary.
Conclusion
Installing a Quaife limited-slip differential can greatly improve your Subaru WRX’s performance. By following these steps, you can complete the installation with confidence and enjoy enhanced driving dynamics.