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The B5 S4 is a beloved model among Audi enthusiasts, known for its performance and tuning potential. One of the most impactful upgrades you can make to enhance handling and power transfer is installing a Quaife Limited Slip Differential (LSD). This guide will walk you through the process, benefits, and considerations of installing a Quaife LSD on your B5 S4 for around $1,200.
Why Upgrade to a Quaife LSD?
A Quaife LSD offers several advantages over a standard open differential. Here are some key benefits:
- Improved Traction: The LSD provides better grip during acceleration, especially in corners or slippery conditions.
- Enhanced Handling: By distributing power more effectively between the wheels, it improves cornering stability and reduces understeer.
- Increased Performance: Power transfer is optimized, allowing for quicker acceleration and improved lap times.
- Durability: Quaife LSDs are built to withstand the rigors of performance driving, ensuring longevity and reliability.
Tools and Materials Needed
Before starting the installation, gather the following tools and materials:
- Torque wrench
- Socket set
- Jack and jack stands
- Transmission fluid
- Quaife LSD kit
- Sealant
- Shop manual for B5 S4
Step-by-Step Installation Process
1. Prepare Your Vehicle
Start by parking your B5 S4 on a flat surface and ensuring the engine is off. Use the jack to lift the vehicle and secure it with jack stands. Make sure you have enough space to work comfortably.
2. Remove the Driveshaft
To access the differential, you need to remove the driveshaft. Use your socket set to detach the bolts connecting the driveshaft to the rear differential and the transmission. Carefully slide the driveshaft out and set it aside.
3. Remove the Differential Cover
Next, remove the differential cover by unscrewing the bolts around the perimeter. Be prepared for some fluid to spill out, so have a container ready to catch it. Once the cover is off, you will see the differential assembly.
4. Remove the Old Differential
Carefully remove the old differential from the housing. You may need to tap it gently with a rubber mallet if it’s stuck. Make sure to keep track of any shims or spacers that may be present.
5. Install the Quaife LSD
Now it’s time to install the Quaife LSD. Place the new differential into the housing, ensuring it sits correctly. Reinstall any shims or spacers that were originally in place. Follow the manufacturer’s instructions for any specific setup requirements.
6. Reattach the Differential Cover
Apply sealant to the differential cover and reattach it, tightening the bolts to the specified torque settings found in your shop manual. This ensures a proper seal and prevents leaks.
7. Reinstall the Driveshaft
Slide the driveshaft back into position, ensuring it aligns correctly with both the rear differential and the transmission. Secure it with the bolts and tighten them to the appropriate torque.
8. Fill with New Fluid
Fill the differential with new fluid as specified in your vehicle’s manual. Make sure to check the fluid level to ensure it’s at the correct height.
9. Test Drive
Finally, lower the vehicle from the jack stands and take it for a test drive. Pay attention to how the car handles and responds during acceleration. You should notice improved traction and handling characteristics.
Conclusion
Installing a Quaife LSD on your B5 S4 is a significant upgrade that can enhance your driving experience. For around $1,200, you gain improved handling, better traction, and optimized power transfer. Follow the steps outlined in this guide to ensure a successful installation and enjoy the benefits of your new differential!