How to Convert a Fwd to Rwd: Transform Your Car's Performance!

Converting a Fwd (Front-wheel Drive) to Rwd (Rear-wheel Drive) requires significant modifications to the vehicle’s drivetrain and suspension system. This process involves replacing the front-wheel drive components with rear-wheel drive components, including a new transmission, differential, and driveshaft.

Additionally, modifications may need to be made to the vehicle’s chassis and exhaust system to accommodate the new drivetrain setup.

Overall, converting a Fwd to Rwd is a complex undertaking that requires extensive knowledge and expertise in automotive engineering and should be done by professionals.

It is important to consult with a reputable mechanic or automotive specialist to ensure the conversion is done correctly and safely.

Contents

Key Differences Between Fwd And Rwd

One of the key differences between FWD (front-wheel drive) and RWD (rear-wheel drive) is the location of the engine and drivetrain components.

Converting a FWD to RWD involves significant modifications to the vehicle’s structure and components, including relocating the transmission and differential.

Pros And Cons Of Front-Wheel Drive

Front-wheel drive (FWD) is a drivetrain configuration where power is delivered to the front wheels of a vehicle. Here are some key points to consider when it comes to FWD:

Improved traction: FWD vehicles tend to offer better traction in adverse weather conditions, such as rain or snow, thanks to the weight of the engine placed directly over the driven wheels.
Efficient space utilization: With the engine and transmission located in the front of the vehicle, FWD designs often allow for more space in the cabin, making them ideal for compact cars and smaller vehicles.
Fuel efficiency: FWD vehicles typically weigh less, resulting in better fuel economy compared to their rear-wheel drive counterparts.
Lower production costs: FWD drivetrains are generally less complex and easier to manufacture, leading to lower production costs for automakers.
Enhanced maneuverability: The front-wheel drive layout generally offers better maneuverability, making it easier to navigate tight corners and city streets.

FWD also has its downsides:

Limited power handling: The front wheels of FWD vehicles are responsible for transmitting power, which can cause torque steer and compromise overall handling, especially in more powerful vehicles.
Understeer tendency: FWD cars tend to exhibit understeer, where the vehicle pushes wide in turns, reducing overall responsiveness and agility.
Reduced towing capacity: The weight distribution in FWD vehicles makes them less suitable for towing heavy loads compared to rear-wheel drive counterparts.

Advantages And Disadvantages Of Rear-Wheel Drive

Rear-wheel drive (RWD) vehicles have power delivered to the rear wheels, offering a distinct driving experience. Let’s explore the advantages and disadvantages of RWD:

Better handling dynamics: RWD vehicles typically offer better weight distribution between the front and rear, resulting in improved handling and balanced performance, especially in sports cars.
Increased towing capacity: RWD setups have better weight distribution and a more robust drivetrain, making them more capable of towing heavier loads.
Enhanced acceleration: RWD vehicles can provide better acceleration and power delivery, as the weight shifts to the rear wheels during acceleration, providing better traction.
Engaging driving experience: RWD cars often offer a more dynamic and engaging driving experience, with a greater emphasis on rear-wheel power delivery.

However, RWD has its disadvantages too:

Challenging in adverse conditions: RWD vehicles can struggle with traction on slippery or icy surfaces, as the weight distribution is shifted towards the rear wheels, resulting in reduced grip on the front wheels.
Reduced interior space: RWD layout often requires a transmission tunnel to accommodate the driveshaft, limiting available space in the cabin.
Additional maintenance costs: RWD vehicles typically have more complex drivetrain components, such as a differential and driveshaft, which may require additional maintenance and repairs.

Factors To Consider Before Converting To Rwd

Before converting a front-wheel-drive (FWD) car to rear-wheel drive (RWD), there are several factors to consider. These include the vehicle’s engine, drivetrain, suspension, and overall compatibility to ensure a successful conversion. It’s important to carefully evaluate these elements before embarking on the RWD conversion process.

Converting a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD) can be an exciting and rewarding project. However, before diving headfirst into the conversion process, it’s crucial to consider a few factors that will play a significant role in the success of your project.

Evaluating the car’s weight distribution, checking the available space for modifications, and analyzing the vehicle’s suspension system are essential steps to ensure a smooth and seamless transition. Let’s delve into these factors in more detail:

Evaluating The Car’S Weight Distribution

Take into account the vehicle’s weight distribution: It is crucial to assess how weight is distributed in the car. A well-balanced weight distribution is fundamental for optimal handling and traction.
Consider the impact on weight distribution during the conversion process: Rear-wheel drive systems typically have a different weight distribution compared to front-wheel drive systems. It is essential to evaluate the potential effects on weight distribution and make any necessary adjustments.
Consult with experts or professionals to determine the ideal weight distribution: An automotive engineer or a knowledgeable mechanic can provide valuable guidance on achieving the desired weight distribution for your RWD conversion.

Checking The Available Space For Modifications

Assess the space constraints in the vehicle: Determine if there is enough space in the engine bay, undercarriage, and rear axle area for the necessary modifications. This includes accommodating the transmission, driveshaft, differential, and other components.
Evaluate the feasibility of making modifications without compromising other essential components: Ensure that the conversion process does not interfere with other critical parts, such as fuel tanks, exhaust systems, or suspension components. Modifications should be carefully planned to avoid any potential issues.

Analyzing The Vehicle’S Suspension System

Understand the differences between FWD and RWD suspension setups: The suspension systems of FWD and RWD vehicles vary in design and functionality. RWD systems primarily focus on transferring power to the rear wheels while maintaining stability and control.
Confirm if the existing suspension system is compatible with the new drivetrain: Assess if the current suspension setup can handle the increased power and torque of the RWD conversion. This includes evaluating the system’s ability to handle weight transfer and provide adequate traction.
Consider upgrading the suspension system if necessary: In some cases, you may need to upgrade or modify the suspension system to ensure optimal performance and handling characteristics for your RWD conversion.

With proper research and preparation, your converted RWD vehicle can provide an exhilarating driving experience on the open road.

Gathering The Necessary Tools And Materials

Converting a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD) can transform the driving experience and unleash a whole new level of performance. But before you embark on this exciting project, it’s essential to gather all the tools and materials you’ll need.

From specialized tools to aftermarket parts, here’s a comprehensive list to ensure a smooth and successful conversion.

List Of Required Tools And Equipment

Jack stands: These sturdy supports are crucial for lifting and safely securing your vehicle during the conversion process.
Hydraulic jack: Make sure you have a reliable hydraulic jack to easily raise and lower your car as needed.
Socket set: A complete set of sockets in various sizes will come in handy for removing and installing different components.
Wrench set: An assortment of wrenches, including both open-ended and socket wrenches, is essential for loosening and tightening nuts and bolts.
Screwdrivers: Invest in a quality set of screwdrivers with various head types for removing various fasteners.
Pry bar: This versatile tool will prove invaluable when it comes to prying apart stubborn or tightly fitted components.
Torque wrench: Precision is crucial during the conversion, and a torque wrench will ensure proper tightening of fasteners to the manufacturer’s specifications.
Brake line wrench: For working on the braking system, a specialized brake line wrench is necessary to prevent damage.
Wire cutter/stripper/crimping tool: These combined tools will enable you to deal with any electrical wiring modifications required.
Drill and drill bits: Depending on the scope of your conversion, drilling may be necessary, so having a drill and an assortment of bits is essential.
Welding machine: If any fabrication or welding is required, having access to a suitable welding machine is vital.

Recommended Aftermarket Parts For The Conversion

Conversion kit: Invest in a reputable conversion kit specifically designed for your make and model of vehicle. This kit typically includes all the necessary components, such as the differential, driveshaft, and axle shafts.
Suspension components: Upgrading your vehicle’s suspension to handle the increased power and torque of a rear-wheel drive system is highly recommended. Consider upgrading the shocks, springs, control arms, and sway bars for improved handling and stability.
Transmission: Depending on the existing transmission in your FWD vehicle, you may need to invest in a rear-wheel drive-compatible transmission for a seamless conversion.
Rear axle assembly: Since FWD vehicles typically lack a rear axle, you’ll need to source a suitable rear axle assembly for your conversion. Look for one that matches your vehicle’s specifications and provides the necessary gearing and differential type.
Driveshaft: A custom or modified driveshaft will be required to connect the transmission to the rear axle. Opt for a high-quality driveshaft with the appropriate length and strength for your vehicle’s newfound rear-wheel drive setup.
Exhaust system: To optimize performance and enhance the sound of your vehicle, consider upgrading to a high-performance exhaust system specifically designed for a rear-wheel drive configuration.

Embarking on a FWD to RWD conversion requires careful planning and preparation, including gathering the necessary tools and acquiring the appropriate aftermarket parts.

By following this comprehensive list, you’ll be well on your way to enjoying the exhilarating performance and handling benefits of a rear-wheel drive vehicle.

Safety Precautions And Preparation

“Discover essential safety precautions and preparation steps for converting a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD). Learn how to successfully make this conversion while ensuring optimal safety and performance. “

Before converting a car from front-wheel drive (FWD) to rear-wheel drive (RWD), it is essential to prioritize safety precautions and proper preparation.

This ensures a smooth and secure conversion process without compromising personal safety or damaging the vehicle. Follow these steps to ensure everything goes smoothly:

Ensuring The Car Is On A Level Surface

Park the car on a flat and level surface to prevent it from rolling during the conversion process.
Engage the parking brake to provide additional stability.
Check that the car is securely parked and immobile before proceeding with any work.

Disconnecting The Battery And Electrical Components

Start by disconnecting the car’s battery to avoid any potential electrical hazards during the conversion.
Locate the battery in the engine bay and use the appropriate tools to detach the negative terminal connection first, followed by the positive terminal.
Ensure that all electrical components, such as lights, ignition, and accessories, are switched off before disconnecting the battery.

Jacking Up The Car And Securing It Properly

Use a hydraulic jack or car lift to elevate the vehicle off the ground safely.
Locate the recommended lifting points underneath the car to avoid causing any damage to the chassis or bodywork.
Once the car is elevated, place jack stands or axle stands in strategic positions to provide stable support.
Make sure the jack stands are securely locked in place before proceeding with any work.

Remember, safety is of utmost importance throughout the conversion process. Taking the necessary precautions and properly preparing the car will help minimize the risk of accidents and ensure a successful FWD to RWD conversion. Always refer to the car’s manufacturer guidelines and consult with experienced professionals if needed.

Removing The Existing Drivetrain Components

To convert a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD), the first step is removing the current drivetrain components. This process involves taking out the transmission, axles, and differential to make way for the new RWD system.

Removing The Front Axle, Transmission, And Engine

In order to convert a front-wheel-drive (FWD) vehicle to rear-wheel drive (RWD), certain drivetrain components must be removed. Let’s take a closer look at how to go about this process:

First, you’ll need to remove the front axle, which connects the front wheels to the rest of the drivetrain. This can usually be accomplished by disconnecting the suspension components and unbolting the axle from the chassis. Be sure to have a suitable replacement axle for the rear-wheel-drive setup.
Next up is the transmission, which is responsible for transmitting power from the engine to the wheels. You’ll need to disconnect the driveshaft and any other linkage connecting the transmission to the engine. Once disconnected, the transmission can be unbolted from the engine and carefully removed.
The engine itself will also need to be removed to accommodate the rear-wheel-drive conversion. This involves disconnecting various electrical connections, fuel lines, and coolant hoses. Additionally, the engine mounts will need to be unbolted so that the engine can be lifted out of the vehicle.

Detaching The Differential, Axles, And Suspension Components

Once the front axle, transmission, and engine have been removed, it’s time to move onto the next set of components:

The differential, which manages power distribution between the rear wheels, must be detached. This typically involves removing the driveshaft that connects the transmission to the differential, as well as any mounting brackets or bolts securing the differential to the chassis.
The axles, which transfer power from the differential to the rear wheels, should be disconnected. This can usually be achieved by releasing any retaining clips or bolts at the differential end of the axles.
Finally, the suspension components, including control arms, struts, and springs, must be disconnected to provide clear access to the empty space. Remove any bolts or fasteners securing them to the chassis.

Cleaning And Preparing The Empty Space For Modifications

With the drivetrain components removed, it’s essential to clean and prepare the empty space for the upcoming modifications. Here’s what needs to be done:

Thoroughly clean the space to ensure all debris and fluids from the previous drivetrain are removed. This will help create a clean foundation for the new setup.
Inspect the chassis and address any areas that require reinforcement or modification to accommodate the rear-wheel-drive conversion. This may involve welding additional bracing or modifying existing mounting points.
Once the space is clean and inspected, it’s time to plan and make any necessary modifications to accommodate the new rear-wheel-drive components. This may include fabricating custom brackets, modifying suspension mounting points, and ensuring adequate clearance for the drivetrain components.

By following these steps to remove the existing drivetrain components and prepare the empty space, you’ll be well on your way to converting a front-wheel-drive vehicle to rear-wheel drive.

Installing The New Drivetrain Components

When converting a front-wheel drive (FWD) to rear-wheel drive (RWD), the installation of new drivetrain components is key. This process involves meticulous attention to detail and precise execution for optimal results.

Let’s delve into each of these steps in more detail:

Mounting The New Rear Differential And Axles

Begin by securing the new rear differential onto the vehicle’s chassis using appropriate mounting brackets and bolts.
Once the rear differential is securely mounted, install the new axles on both sides, ensuring they align correctly with the differential and the wheels.
Secure the axles using the provided axle nuts or bolts and ensure they are tightened to the manufacturer’s specifications.

Installing The Modified Suspension System

Start by removing the existing suspension components, such as struts, control arms, and sway bars, from the vehicle.
Install the modified suspension system, including new struts or shock absorbers, control arms, and sway bars.
Ensure that all suspension components are properly aligned and securely fastened to the vehicle’s chassis.

Connecting The Transmission And Modified Engine

Begin by connecting the transmission to the modified engine using appropriate transmission mounts and adapters.
Align the transmission and engine properly, ensuring that all connections and fasteners are secure.
Install the driveshaft between the transmission and the rear differential, ensuring it is properly aligned and securely attached.

By following these steps, you can successfully convert a FWD vehicle to RWD by installing the new drivetrain components. Remember to consult professional guides or seek assistance from experienced mechanics to ensure a proper and safe conversion.

Modifying The Electrical System And Controls

To convert a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD), modifications to the electrical system and controls are necessary.

It involves rewiring and reconfiguring the components to ensure seamless operation and compatibility with the new drivetrain configuration. This process requires expertise and attention to detail to ensure everything works harmoniously.

So, you’ve decided to convert your car from front-wheel drive (FWD) to rear-wheel drive (RWD). This modification is not only exciting but can also enhance the performance of your vehicle.

One crucial aspect of this process is modifying the electrical system and controls, ensuring everything operates smoothly and efficiently.

Let’s delve into the key steps involved in this process:

Rewiring The Electrical System For The New Setup

To successfully convert your car to RWD, you’ll need to rewire the electrical system to accommodate the changes. Here’s what you need to do:

Begin by carefully mapping out the existing wiring system, taking note of the connections and components related to the front-wheel drive setup.
Next, remove any unnecessary wiring that is specific to the FWD system.
Identify the components required for the RWD conversion, such as sensors, solenoids, and controllers, and plan their integration into the new setup.
Install the necessary wiring harnesses and connectors to ensure proper connectivity between the various electrical components.
Double-check all connections, ensuring they are secure and free from any potential issues that could arise from vibrations or jostling during operation.

Adjusting The Throttle And Accelerator Controls

When converting from FWD to RWD, the throttle and accelerator controls must be adjusted to align with the new drivetrain configuration. Here’s what you should consider:

Examine the existing throttle linkage and determine if modifications are needed to accommodate the RWD setup.
Make any necessary adjustments to the throttle cable or electronic throttle control (ETC) system to ensure proper operation and response.
Test the throttle and accelerator controls thoroughly to ensure they are functioning correctly and provide a smooth driving experience.
It may be necessary to recalibrate or reprogram the engine control unit (ECU) to optimize throttle response and driveability with the new RWD setup.

Calibrating The New Drivetrain Settings

Once the electrical system has been rewired, and the throttle and accelerator controls have been adjusted, it’s crucial to calibrate the new drivetrain settings. Follow these steps:

Start by checking the alignment of the drivetrain components to ensure they are properly positioned and adequately secured.
Perform a comprehensive inspection of the converted drivetrain, paying close attention to the transmission, differential, and associated components.
Test the vehicle under various driving conditions to assess its handling, traction, and overall performance.
Make any necessary adjustments to optimize the drivetrain’s settings, fine-tuning them to achieve the desired balance between power delivery and control.
Consult with a professional mechanic or automotive engineer if needed, to ensure that the drivetrain settings are calibrated accurately and safely.

Road Testing And Initial Performance Assessment

This short description provides an overview of the topic “Road testing and initial performance assessment” related to converting a FWD (front-wheel drive) vehicle to RWD (rear-wheel drive).

It discusses the process and importance of road testing and assessments for evaluating the performance of the converted vehicle.

Throughout the road testing and initial performance assessment phase of converting a front-wheel drive (FWD) vehicle to rear-wheel drive (RWD), it is crucial to conduct a test drive to evaluate the success of the conversion and address any potential issues or concerns that may arise.

This stage gives us an opportunity to assess the vehicle’s performance and ensure optimal functionality. Let’s dive into the key aspects of this process.

Conducting A Test Drive To Evaluate The Conversion:

During the test drive, it is important to focus on several areas to assess the effectiveness of the conversion. Here are the key points to consider:

Steering responsiveness: Test the vehicle’s steering response to ensure it adapts well to the new RWD configuration. Pay close attention to how the car handles corners and turns.
Acceleration and power delivery: Evaluate the vehicle’s acceleration and power delivery to determine if the conversion has enhanced or affected the overall performance. Measure the vehicle’s ability to seamlessly move from a stationary position and gauge the general power output.
Braking and stability: Assess the braking system’s functionality and stability, ensuring it can handle the change from FWD to RWD. Evaluate the vehicle’s stability during sudden stops and emergency maneuvers to guarantee passenger safety.
Traction and grip: Test the vehicle’s traction and grip on various road surfaces to determine whether the conversion has influenced these factors. Analyze the traction control system and assess its effectiveness in different driving conditions.
Suspension and ride comfort: Evaluate the vehicle’s suspension system to ensure it accommodates the new RWD setup. Pay attention to how the car handles bumps, potholes, and uneven terrain, as well as the overall ride comfort.
Noise, vibration, and harshness (NVH): Assess the levels of noise, vibration, and harshness inside the vehicle during the test drive. The conversion should not cause excessive NVH, which may hinder the overall driving experience.

Addressing any initial issues or concerns:

If any issues or concerns arise during the test drive, it is vital to address them promptly to ensure the success of the conversion. Here are a few essential steps to follow:

Diagnostic evaluation: Use diagnostics tools and techniques to identify any underlying issues that may have resulted from the conversion process. Pinpointing the specific problem areas will help in formulating effective solutions.
Consulting professionals: Reach out to experienced mechanics or automotive specialists who have expertise in RWD conversions. Their insights and recommendations can prove invaluable in addressing any challenges that emerge.
Implementing necessary adjustments: Based on the diagnostic evaluation and professional advice, make the appropriate adjustments to resolve any issues. This may involve modifying certain components, recalibrating systems, or fine-tuning the overall setup.

Remember to pay attention to steering responsiveness, acceleration and power delivery, braking and stability, traction and grip, suspension and ride comfort, as well as noise, vibration, and harshness levels. Take immediate action to remedy any issues discovered and seek expert guidance when needed.

Fine-Tuning The New Rwd Setup

Fine-tuning the new RWD setup involves mastering the process of converting from FWD to RWD. Learn the ins and outs of this transformation and optimize your vehicle’s performance for a seamless and enjoyable driving experience.

Let’s explore each aspect in detail:

Adjusting The Suspension For Optimal Handling:

Ensure the suspension components are compatible with the new RWD setup.
Set the ride height to balance weight distribution and improve stability.
Fine-tune the shock absorbers’ dampening settings for enhanced control and responsiveness.
Modify the alignment angles to optimize cornering grip and minimize understeer or oversteer tendencies.
Consider upgrading to aftermarket sway bars for improved body roll control.
Regularly check and adjust tire pressures to maintain optimal handling characteristics.

Tweaking The Transmission And Differential Settings:

Optimize gear ratios to match the RWD conversion and desired driving characteristics.
Adjust the shift points and responsiveness of the transmission for smoother and quicker gear changes.
Calibrate the differential to ensure ideal power distribution between the rear wheels.
Consider installing a limited-slip or locking differential for improved traction and stability during acceleration and cornering.
Consult a professional or refer to your car’s documentation for specific transmission and differential tuning guidelines.

Optimizing The Car’S Overall Performance:

Upgrade the braking system to handle the increased power and potential higher speeds of the RWD setup.
Install performance-oriented tires for improved grip and traction.
Fine-tune the steering system to reduce play and achieve precise steering feedback.
Consider upgrading the engine and exhaust system to take full advantage of the RWD setup.
Regularly maintain and service the RWD components to ensure their optimal performance.
Test drive the car after each adjustment to evaluate the impact on handling, acceleration, and overall performance.

Remember to prioritize safety and consult experienced professionals if you need further guidance. Get ready to experience the thrill and excitement of driving a finely tuned rear-wheel drive machine!

Conclusion

Converting a front-wheel drive (Fwd) vehicle to rear-wheel drive (Rwd) can be a complex and challenging process, but with the right knowledge and skills, it is definitely achievable. By following the steps outlined in this blog post, you can successfully transform your vehicle’s drivetrain and experience the benefits of Rwd, such as improved handling and performance.

Remember to carefully consider all the necessary modifications, including swapping out the transmission, modifying the suspension, and reinforcing the chassis. It is crucial to consult with experienced mechanics and specialists who can provide guidance and assistance throughout the conversion process.

With their expertise and your determination, you can enjoy the thrill and excitement that comes with owning a Rwd vehicle. So go ahead, embark on this rewarding journey and transform your Fwd vehicle into a powerful and dynamic Rwd machine.

Happy driving!