When it comes to performance tuning, car enthusiasts are always on the lookout for ways to enhance their vehicles’ handling, acceleration, and overall driving experience. One such modification that’s gaining traction in the automotive world is the 335i diff retrofit for Ford. This process involves adapting the differential (or “diff”) from a BMW 335i and fitting it into a Ford vehicle. The result? A substantial improvement in performance, traction, and handling, making your Ford car more agile and fun to drive.
In this article, we’ll explore the process of retrofitting a 335i diff into a Ford vehicle, its benefits, challenges, and everything in between. Whether you’re a seasoned tuner or just getting started, this guide will help you understand the 335i diff retrofit for Ford and why it could be the upgrade you’ve been waiting for.
What is a Differential, and Why Does it Matter?
Before diving into the details of the 335i diff retrofit for Ford, it’s essential to understand the role of a differential. In simple terms, the differential is a component in the vehicle’s drivetrain that allows the wheels to rotate at different speeds. This is crucial when navigating turns, as the wheels on the inside of a turn travel a shorter distance than those on the outside.
Benefits of Upgrading a Differential:
- Improved Traction: Upgrading to a high-performance differential can significantly improve traction, especially during aggressive cornering.
- Enhanced Acceleration: A better differential ensures that power is distributed evenly to the wheels, resulting in faster acceleration.
- Better Handling: A well-tuned differential offers superior handling, allowing the vehicle to maintain better control during high-speed maneuvers.
Why Choose the BMW 335i Differential?
The BMW 335i comes with a robust and high-performance differential that’s known for its durability and efficiency. It’s an ideal candidate for retrofitting into Ford vehicles because of its:
- Superior Build Quality: BMW’s engineering is renowned for reliability and performance, making the 335i diff a great option for those looking to enhance their Ford’s capabilities.
- Limited-Slip Capabilities: Many BMW 335i differentials come with limited-slip functionality, which helps in better traction and handling, especially during aggressive driving or on slippery surfaces.
- High Torque Handling: The 335i diff is capable of handling significant torque, making it perfect for high-performance Ford models that have been tuned for more power.
How to Perform a 335i Diff Retrofit for a Ford Vehicle
Step-by-Step Guide:
- Assess Compatibility: Before starting the retrofit, it’s essential to ensure that the BMW 335i differential is compatible with your Ford vehicle. Common Ford models for this modification include the Mustang and Fiesta ST.
- Gather Required Tools and Parts:
- BMW 335i differential (typically from a 2007-2013 model)
- Adapter kits (specific to your Ford model)
- Axles, driveshaft, and other drivetrain components
- Specialized tools such as a torque wrench, differential pullers, and mounts
- Remove the Stock Differential: Safely lift the vehicle and begin by removing the stock Ford differential. This will usually involve disconnecting the axles, driveshaft, and mounts.
- Install the BMW 335i Diff: Once the stock diff is removed, the 335i diff can be installed. Adapter kits will be necessary for proper fitment, and it’s crucial to ensure all components are torqued to manufacturer specifications.
- Test and Tune: After installation, take the vehicle for a test drive. Check for any unusual noises or issues with handling. You may also want to tune the diff for better performance, depending on your driving style and goals.
Key Benefits of Retrofitting a 335i Diff into a Ford
1. Improved Performance
The most obvious benefit of a 335i diff retrofit for Ford is the immediate boost in performance. You’ll notice faster acceleration, improved cornering abilities, and better traction overall.
2. Enhanced Driving Experience
Whether you’re on a racetrack or taking tight turns on a country road, the upgraded diff provides a smoother, more controlled driving experience. You’ll feel more confident behind the wheel, knowing your Ford can handle more aggressive driving.
3. Cost-Effective Upgrade
Compared to full drivetrain overhauls, retrofitting a 335i diff into a Ford vehicle offers significant performance gains at a fraction of the cost. Plus, the durability of BMW differentials ensures a long-lasting investment.
Challenges and Considerations
While the 335i diff retrofit for Ford is an exciting upgrade, it’s not without its challenges. Here are a few things to keep in mind:
1. Compatibility Issues
Not all Ford models are suitable for a 335i diff retrofit. It’s important to thoroughly research your specific model and consult with experts if necessary.
2. Cost and Time Investment
While the retrofit is generally cost-effective, it’s not a DIY project for beginners. You may need professional help, which can increase the overall cost. Additionally, sourcing high-quality components and adapter kits can take time.
3. Maintenance Considerations
After the retrofit, regular maintenance will be crucial to ensuring the differential continues to perform at its best. Keep an eye on the fluid levels and replace any worn-out components promptly.
How the 335i Diff Retrofit Enhances Ford Muscle Cars? Exploring New Angles!
When it comes to Ford muscle cars like the Mustang, the 335i diff retrofit offers several unique advantages. With the added torque handling of the BMW diff, high-powered engines can deliver their full potential without fear of drivetrain failure. This is particularly appealing for drivers looking to push their Mustangs to the limit on both the road and the track.
Should You Attempt the Retrofit Yourself?
The 335i diff retrofit for Ford is a relatively complex process, requiring advanced mechanical skills and the right tools. While some enthusiasts may be able to tackle it on their own, most will benefit from professional assistance, especially when it comes to tuning and adjusting the differential for optimal performance.
FAQs about 335i Diff Retrofit for Ford
1. What is a 335i diff retrofit for Ford?
A 335i diff retrofit for Ford involves fitting a BMW 335i differential into a Ford vehicle to improve performance, handling, and acceleration.
2. Which Ford models are suitable for a 335i diff retrofit?
Common Ford models for this modification include the Mustang, Focus, and Fiesta ST, though compatibility varies based on model and year.
3. What are the benefits of a 335i diff retrofit?
The key benefits include enhanced traction, better handling, improved acceleration, and a more enjoyable driving experience.
4. Can I perform a 335i diff retrofit myself?
While it’s possible, the retrofit requires advanced mechanical knowledge and specialized tools, so it’s often best to seek professional help.
5. How much does a 335i diff retrofit cost?
The cost can vary depending on parts, labor, and the specific Ford model. On average, expect to spend between $1,500 and $3,000 for the retrofit.
6. Is a 335i diff retrofit reliable?
Yes, when done correctly, the BMW 335i differential is known for its reliability and can handle increased torque, making it a durable upgrade.
7. Do I need to tune my Ford after a 335i diff retrofit?
It’s recommended to fine-tune the differential for optimal performance, especially if you plan to push your vehicle to its limits.
8. What are the challenges of a 335i diff retrofit for Ford?
The main challenges include compatibility issues, cost, and the need for regular maintenance after the retrofit.
9. How does a limited-slip differential improve performance?
A limited-slip differential distributes power evenly to the wheels, improving traction and handling, particularly during aggressive driving.
10. What other upgrades should I consider along with a 335i diff retrofit?
Upgrading the suspension, brakes, and tires can complement the diff retrofit, ensuring that your Ford handles the additional power efficiently.
Conclusion: Is a 335i Diff Retrofit for Ford Worth It?
The 335i diff retrofit for Ford is a game-changing modification for those seeking improved performance and handling. While it comes with challenges, the benefits far outweigh the downsides, making it an excellent upgrade for performance-focused drivers. If you’re looking to take your Ford to the next level, the 335i diff retrofit could be the key to unlocking its full potential.
Ready to start your upgrade journey? Consult a professional mechanic today and explore the exciting possibilities that a 335i diff retrofit offers for your Ford vehicle!