Peter Banks If you’re looking to upgrade your Subaru’s drivetrain, a rear-wheel drive (RWD) swap is a great option. Not only does it offer improved performance and handling, but it can also be a fun and challenging project for any car enthusiast. In this guide, we’ll walk you through the step-by-step process of performing a RWD swap on your Subaru.
Key Takeaways
- A RWD swap can improve your Subaru’s performance and handling.
- The process involves removing the existing drivetrain and replacing it with components from a compatible RWD vehicle.
- The swap can be a challenging project, but with the right tools and knowledge, it is achievable for most car enthusiasts.
What You’ll Need
Before you get started, it’s important to make sure you have all the necessary tools and components. Here’s a list of the basic items you’ll need:
- A compatible RWD drivetrain from a donor vehicle
- Appropriate tools (sockets, wrenches, screwdrivers, etc.)
- Welder (optional, but recommended)
- Jack stands and a floor jack
- Shop manual for your Subaru and the donor vehicle
- Patience and attention to detail
Step-by-Step Guide
Now that you have all the necessary tools and components, let’s dive into the step-by-step process for performing a RWD swap on your Subaru.
Step 1: Remove the Existing Drivetrain
The first step in the process is to remove the existing drivetrain from your Subaru. This includes the engine, transmission, driveshaft, and rear differential. Refer to your shop manual for detailed instructions on how to perform this task.
Step 2: Prepare the RWD Drivetrain
Next, you’ll need to prepare the RWD drivetrain for installation. This involves removing any unnecessary components and modifying others to fit your Subaru. You may need to weld new mounting brackets or modify existing ones to ensure everything fits properly.
Step 3: Install the RWD Drivetrain
Now it’s time to install the RWD drivetrain into your Subaru. This includes mounting the engine, transmission, driveshaft, and rear differential. Again, refer to your shop manual for detailed instructions on how to perform this task. Make sure everything is properly aligned and torqued to manufacturer specifications.
Step 4: Modify the Driveshaft
Depending on the donor vehicle and your Subaru’s chassis, you may need to modify the driveshaft to ensure proper fitment. This may involve shortening or lengthening the driveshaft and/or modifying the U-joints.
Step 5: Modify the Firewall and Transmission Tunnel
In order to fit the RWD drivetrain into your Subaru, you may need to modify the firewall and transmission tunnel. This may involve cutting and welding new sections to ensure everything fits properly.
Step 6: Install New Suspension and Brake Components
With the RWD drivetrain installed, you’ll need to upgrade the suspension and brake components to ensure proper handling and stopping power. This may involve installing new shocks, springs, sway bars, and brakes.
Step 7: Test and Tune
Once everything is installed, it’s time to test the car and make any necessary adjustments. This includes checking for leaks, adjusting alignment and suspension settings, and optimizing the engine and transmission for performance.
FAQ
Q: How long does a RWD swap take?
A: The time it takes to perform a RWD swap varies depending on your experience level, the complexity of the swap, and the availability of tools and components. It can range from a few days to a few weeks.
Q: Do I need to weld anything?
A: While welding is not always necessary, it is recommended for certain modifications and for ensuring proper fitment.
Q: Can I use any RWD drivetrain from any donor vehicle?
A: No, you’ll need to make sure the RWD drivetrain is compatible with your Subaru’s chassis and that all components will fit properly.
Q: Is a RWD swap worth the effort and expense?
A: It depends on your goals and preferences. A RWD swap can offer improved performance and handling, but it can also be a challenging and expensive project.
Conclusion
Performing a RWD swap on your Subaru can be a fun and rewarding project for any car enthusiast. While it can be a challenging undertaking, with the right tools and knowledge, it is achievable for most people. By following this step-by-step guide, you’ll be well on your way to upgrading your Subaru’s drivetrain and enjoying improved performance and handling.
