How to Correctly Install a Roll Cage in a Ford Mustang for Track Safety?

April 15, 2024

When it comes to track racing, safety should never be compromised. One of the most critical components contributing to your safety in a race car is a roll cage. A solidly built and correctly installed roll cage can protect the driver in the event of a crash, or even a roll-over. Today we’ll walk you through the steps of correctly installing a roll cage in a Ford Mustang to ensure your safety on the racetrack. Our discussion will cover key points such as cage selection, preparing your car, the installation process, and the crucial role of welding in securing your roll cage.

1. Choosing the Right Roll Cage

The first step in ensuring the safety of your Mustang on the track is choosing the right roll cage. Forums and online communities can be a valuable resource for getting opinions from seasoned racers, but it’s essential to consider your specific requirements.

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Roll cages vary significantly in design, from simple four-point roll bars to complex multi-point roll cages. Four-point roll bars are usually sufficient for street cars and occasional track day cars. However, for dedicated race cars, it’s advisable to install a more comprehensive roll cage with a main hoop, front and rear bars, and door bars for added safety.

The roll cage material is also a critical consideration. The bars of the roll cage should be made from strong and durable materials such as steel or chromoly. The cage’s tubes must also meet specific size and thickness requirements set by race organizations.

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2. Preparing Your Mustang for Roll Cage Installation

Once you’ve chosen the right cage for your Mustang, it’s time to prepare the car for installation. This process involves creating enough space for the roll cage and ensuring that the car’s interior is properly protected.

You will need to remove the car’s seats, carpet, and headliner to provide enough room for the roll cage. If your Mustang has a sunroof, consider whether you want to keep it or replace it with a metal panel for added safety.

Before beginning the installation process, it’s also advisable to protect the car’s interior. Use masking tape and sheets of plastic to cover the dashboard, center console, and door panels. This precaution will help prevent damage from sparks during the welding process.

3. The Roll Cage Installation Process

Now that your Mustang is prepared, you can begin the roll cage installation process. Installing a roll cage is a complex task that requires precision and patience.

Start by positioning the main hoop in the correct location. The hoop is the central part of the roll cage and must be installed correctly to ensure the cage’s safety and effectiveness. The bottom of the hoop should be on the car’s floor, and the top should be as close to the roof as possible without touching it.

Next, install the front and rear bars. The front bars should run from the main hoop to the firewall, while the rear bars should connect the hoop to the rear wheel wells.

Following this, you need to install the door bars. These bars not only provide additional protection but also increase the roll cage’s overall rigidity.

4. Securing the Roll Cage with Welding

After correctly positioning all the bars, the next step is to secure them in place through welding. Welding is a crucial part of the roll cage installation process and must be done correctly to ensure the cage’s stability and safety.

Before you begin welding, make sure the cage is properly aligned and tightly fitted. Use a level to check that all bars are straight, and use clamps to hold them in place while you weld.

The welds themselves should be clean and penetrate the full thickness of the tube. Avoid "tack" welding, as this can compromise the strength of the roll cage. Instead, perform full welds around the entire circumference of each junction point.

In addition to the cage itself, make sure to weld mounting plates to the car’s chassis at each contact point. These plates spread the load in a crash and prevent the roll cage from punching through the car’s floor.

5. Post-Installation Checks and Maintenance

Following successful roll cage installation and welding, post-installation checks are crucial to ensure optimal safety on the track. Check all welds for cracks and re-weld if necessary. Regularly inspect the roll cage for any signs of damage or wear, and repair promptly.

Remember, a roll cage isn’t a fit-and-forget modification. It requires regular inspections and maintenance to ensure it continues to provide the highest level of safety. With a correctly installed roll cage, you’re now better equipped to enjoy the exhilaration of track racing with the peace of mind that comes with adequate safety measures.

6. The Importance of Material Selection and Welding Techniques

Choosing the right material for your roll cage is as important as its design and installation. The common materials used for roll cages are mild steel and chromoly. Mild steel, though heavier, is easier to work with and less expensive. Chromoly, on the other hand, is lighter and possesses higher yield strength, making it a preferred choice for professional race car drivers.

In terms of welding techniques, TIG welding is recommended for chromoly due to its lower heat input and cleaner welds, while MIG welding is commonly used for mild steel. The type of welding used can impact the strength and durability of the roll cage. Therefore, it’s important to employ the proper welding technique based on the material used.

Moreover, when building the roll cage, ensure that welds are not only on the top but also underneath the bars. This helps in increasing the strength of the roll cage and enhancing its safety level. Be mindful that welding should be done by a professional or an experienced individual, as poor welding could lead to catastrophic outcomes, putting the driver at risk.

7. The Role of Door Bars and Bolt Roll in a Cage Car

Door bars play an essential role in a roll cage installation. These bars increase the rigidity of the cage and offer extra protection to the driver in the case of a side impact. When installing door bars, they should be as high and as wide as possible within the door frame. Properly installed door bars can make a significant difference in the event of a collision.

On the other hand, a bolt roll cage has the advantage of being removable. This feature is especially useful for cars that are used for both racing and regular street driving. These cages, typically made from mild steel, are bolted into place and can be removed when not needed. Keep in mind, however, that while bolt roll cages offer convenience, they may not provide the same level of safety as a fully welded roll cage.


Installing a roll cage in your Ford Mustang is a technical process, demands precision, and should not be taken lightly. From choosing the right roll cage, preparing your car for installation, to the actual process of fitting and securing the roll cage with the correct welding techniques, every step holds its own significance.

Regular maintenance and inspections of your roll cage ensure it continues to perform its role – protecting you during your thrilling track racing adventures. With every element of the cage, from the main hoop to the door bars, carrying a distinct role in your safety, it’s important to pay attention to detail during installation. Remember, safety is paramount in racing, and a well-installed roll cage is a significant part of that safety equation.

So, whether you’re a seasoned race car driver or a novice eager to feel the adrenaline of speed, take the time to ensure your safety with a correctly installed roll cage. It’s not just about the thrill of the race, but also about returning from it, safe and sound.