Fox Body rear disk brake conversion—transforming your classic Mustang into a braking powerhouse. This guide explores the exciting world of upgrading your Fox Body’s rear braking system, covering everything from the history and rationale behind this modification to detailed installation procedures, cost analysis, and advanced customization options. Get ready to unleash the stopping power within!
From the initial spark of inspiration to the final, satisfying roar of your newly-improved braking system, this comprehensive guide provides the knowledge you need to confidently embark on this exciting project. We’ll navigate the complexities of component selection, installation, and performance enhancements, all while providing a clear understanding of potential challenges and solutions.
Introduction to Rear Disk Brake Conversions on Fox Body Mustangs
The Fox Body Mustang, a timeless icon, often finds itself in the spotlight of performance upgrades. One such enhancement that resonates with enthusiasts is the rear disc brake conversion. This modification isn’t just a cosmetic change; it significantly improves braking performance and handling. This conversion is often a pivotal step for those seeking enhanced stopping power and a more refined driving experience.The desire for improved braking, particularly on a modified vehicle, is a common motivation for this conversion.
The stock drum brakes, while functional, often struggle to keep pace with the increased power and handling capabilities of upgraded Fox Bodies. This leads to a compelling need for a more powerful and responsive braking system, driving the demand for rear disc brakes.
Historical Context of Rear Disk Brake Conversions
Early Fox Body Mustangs were equipped with drum brakes. As aftermarket parts and technology advanced, enthusiasts recognized the limitations of drum brakes in performance-oriented applications. The rise of high-performance aftermarket components and the growing desire for enhanced braking performance spurred the development of rear disc brake conversion kits. This marked a turning point in the evolution of Fox Body Mustang modifications, paving the way for the advanced braking systems we see today.
Common Reasons for Rear Disk Brake Conversions
The most compelling reason for upgrading to rear disk brakes is a demonstrable increase in stopping power. This is especially crucial for modified Mustangs with higher horsepower outputs, where the improved braking can help prevent uncontrolled situations. The improved responsiveness and feel also enhance the driver’s control, especially in spirited driving conditions.
Advantages and Disadvantages of Rear Disk Brake Conversions
The advantages are clear: enhanced stopping power, improved modulation, and a noticeable improvement in the overall handling of the vehicle. This translates to increased safety and confidence on the road. However, there are disadvantages to consider. The installation process can be complex, requiring a considerable amount of technical skill and potentially more time and effort. The cost of the conversion can vary greatly depending on the specific kit and components.
Available Rear Disk Brake Systems for the Fox Body
A range of aftermarket rear disk brake kits caters to various needs and budgets. These systems vary in terms of their components, functionality, and compatibility. Some systems are designed for purely performance applications, while others are more focused on a balance of performance and cost-effectiveness. The choice of system should align with the specific needs and goals of the vehicle owner.
Comparison of Aftermarket Rear Disk Brake Kits
| Kit | Brand | Cost | Features |
|---|---|---|---|
| Hawk Performance Rear Disc Brake Kit | Hawk Performance | $XXX | High-performance calipers, precision-machined rotors, and reinforced brackets. |
| Wilwood Rear Disc Brake Kit | Wilwood | $XXX | Known for their robust construction and exceptional stopping power, offering a premium experience. |
| StopTech Rear Disc Brake Kit | StopTech | $XXX | Features a wide array of options to fit different needs and budgets, with an emphasis on balance and cost-effectiveness. |
This table provides a basic overview of some popular aftermarket kits. Actual pricing and feature details will vary based on specific configurations and add-ons. Thorough research and consultation with experienced mechanics are recommended before making a purchase.
Component Selection and Compatibility
Getting your Fox Body Mustang’s rear brakes upgraded to discs is a rewarding project. It’s a fantastic way to improve stopping power and overall performance. This section delves into the essential components, offering choices and insights to help you make informed decisions.Careful selection of components is key to a successful conversion. Compatibility is crucial, and matching the right parts to your specific Fox Body year is vital for a seamless installation.
Understanding the different caliper options and rotor types available is essential for optimizing braking performance and ensuring a proper fit.
Crucial Components
The heart of any disc brake system is the caliper and rotor. Beyond these core elements, necessary supporting components include brake lines and hardware. Correctly sizing and choosing the right components for your Fox Body Mustang is important.
- Calipers: Calipers are the mechanical arms that grip the rotor. Different caliper types offer varying performance characteristics. Some are more robust and powerful, others are more budget-friendly.
- Rotors: Rotors are the discs that the calipers grip. They come in various sizes and thicknesses, each affecting braking performance. The rotor’s thickness impacts heat dissipation. Choose a rotor that matches the caliper’s design and your braking needs.
- Brake Lines: New brake lines are necessary to ensure proper fluid flow. These lines connect the master cylinder to the calipers. They should be designed for the specific pressure exerted by the upgraded system.
- Hardware: This includes mounting brackets, bolts, and other accessories necessary for attaching the new components to your existing system. The quality and fit of these components directly impact the integrity of the conversion.
Caliper Options
Choosing the right caliper is critical. Several options are available, each with its strengths and weaknesses.
- Stock Replacement Calipers: These are often the most budget-friendly option, but may not offer the same performance as aftermarket calipers. The advantage is familiarity and straightforward installation.
- Aftermarket Calipers: These calipers provide greater braking power and often come with improved features like better heat dissipation. They typically require more specialized installation but yield noticeable improvements in performance.
Rotor Selection
Rotor selection involves considering the rotor’s size, thickness, and material. These factors influence braking performance.
- Size: Match the rotor size to the caliper and your needs. Too small a rotor will limit performance; too large may be unnecessarily expensive.
- Thickness: Thicker rotors can better handle the heat generated during braking, especially under heavy use. Thickness directly impacts heat dissipation.
- Material: Rotors are often made from steel. High-performance rotors may incorporate specific alloys for enhanced heat resistance.
Brake Lines and Hardware
Proper brake lines and hardware are essential for the system’s integrity. Correctly fitting components is vital.
- Brake Lines: Ensure that the brake lines are compatible with your existing hydraulic system. New lines are typically necessary for a rear disc conversion.
- Hardware: This encompasses all the necessary mounting brackets and bolts to connect the new components to your existing system. Choose high-quality hardware for optimal performance and durability.
Compatibility Chart (Example)
| Part | Brand | Compatibility | Details |
|---|---|---|---|
| Rear Disc Brake Caliper | Wilwood | 1987-1993 Fox Body | High-performance caliper with improved heat dissipation. |
| Rear Disc Brake Rotor | Hawk | 1987-1993 Fox Body | Heavy-duty rotors for enhanced stopping power. |
| Brake Lines | Goodridge | 1987-1993 Fox Body | High-quality stainless steel brake lines for improved durability. |
Installation Procedures and Troubleshooting: Fox Body Rear Disk Brake Conversion
Getting your Fox Body Mustang’s rear brakes upgraded to discs is a rewarding experience. Proper installation is key to enjoying the improved stopping power and enhanced driving feel. This section will guide you through the installation process, highlighting crucial steps and potential pitfalls. Addressing these issues proactively will save time and frustration down the road.Careful planning and methodical execution are vital.
Each step should be approached with attention to detail, ensuring that components are properly aligned and tightened. This approach minimizes the chances of encountering unforeseen problems during the installation process.
Step-by-Step Installation Guide
This comprehensive guide will walk you through the process of installing your rear disc brake conversion, from initial preparations to final checks. Each step is designed to minimize errors and maximize the efficiency of your installation.
- Thorough preparation is crucial. Gather all necessary tools and components. Ensure all parts are correctly identified and accounted for. Double-check part compatibility with your specific Fox Body Mustang model.
- Carefully remove the existing drum brake components. Disconnect the brake lines, ensuring no damage occurs. Properly label and store these components for later re-use.
- Install the new disc brake calipers. Pay close attention to proper caliper mounting and alignment. Tighten mounting bolts in a sequential pattern to prevent warping.
- Attach the brake lines to the new calipers, ensuring they are correctly connected and free of kinks. Use appropriate tools for tightening the connections.
- Mount the new rotors, ensuring they are centered and aligned with the calipers. Apply the correct torque to the mounting bolts.
- Install the wheel bearings and hub assemblies, meticulously ensuring proper seating and alignment. Double-check for any signs of damage or misalignment.
- Connect the brake lines to the master cylinder, ensuring a secure and leak-free connection. Verify all connections.
- Conduct a comprehensive system bleed. Proper bleeding is critical to achieving optimal brake performance. Use a vacuum pump or a suitable method for removing air from the system.
- Perform a final inspection of all connections and components. Ensure that everything is properly secured and functioning correctly. Test the brakes to confirm adequate stopping power.
Potential Issues and Solutions
Anticipating potential problems during installation is crucial. This table Artikels potential issues and their solutions, empowering you to address problems effectively.
| Problem | Cause | Solution |
|---|---|---|
| Brake Pedal Feels Soft | Air in the brake lines | Bleed the brake system thoroughly. |
| Wobbly Rotors | Incorrect rotor installation | Ensure rotors are correctly centered and aligned with calipers. Recheck torque specifications. |
| Caliper Sticking | Incorrect caliper mounting or seized pistons | Clean caliper components, lubricate moving parts, and potentially adjust piston position. |
| Leakage from Connections | Loose connections or damaged hoses | Tighten connections and inspect hoses for damage. Replace damaged components. |
Importance of Bleeding and Flushing, Fox body rear disk brake conversion
Proper bleeding and system flushing are critical for optimal brake performance. A well-maintained brake system is essential for safety and driving confidence. Air in the system directly affects braking power.
A thorough bleed removes air pockets, ensuring consistent pressure throughout the system.
Methods for Bleeding Brake Systems
Different methods can be used for bleeding the brake system, each with its advantages and disadvantages. Choosing the right method depends on your tools and the specific system.
- Vacuum Pump Method: This method utilizes a vacuum pump to create a consistent vacuum, facilitating air removal from the system. This is generally considered the most efficient method.
- Gravity Method: This method leverages gravity to drain air from the system. This method is often simpler but may require more time.
- Pressure Bleeder: This method employs pressure to force out air from the system, which can be faster but requires more specialized tools.
Potential Complications
Some unexpected challenges may arise during installation. Understanding these potential issues empowers you to address them proactively.
- Incorrect Component Selection: Using components incompatible with your Fox Body Mustang can lead to issues with fitment and function.
- Tightening Issues: Excessively tight or loose connections can affect performance and potentially damage components.
- Improper Bleeding: Incomplete bleeding can result in inconsistent braking and safety concerns.
Performance and Driving Experience
The transformation from drum brakes to disc brakes on your Fox Body Mustang is more than just a mechanical upgrade; it’s a leap forward in driving experience. The improved stopping power and responsive handling are truly noticeable, making every drive more enjoyable and confident. This section dives into the tangible benefits and potential considerations for optimizing your ride.
Braking Performance Comparison
The difference between drum brakes and disc brakes is immediately apparent in stopping power. Disc brakes provide a much stronger bite and more consistent stopping force, particularly under heavy braking conditions or in emergency situations. The responsiveness is also enhanced; you’ll feel a more immediate and controlled stopping experience. Drum brakes can fade under hard use, whereas disc brakes maintain their stopping power.
Handling and Weight Distribution
The conversion to rear disc brakes has a positive impact on the overall handling characteristics of the vehicle. Improved braking force, particularly at the rear, leads to better stability during cornering and braking maneuvers. Weight distribution is subtly affected, with a slight shift of the vehicle’s center of gravity. This minor adjustment is usually negligible in terms of daily driving but may influence handling in more extreme conditions like spirited cornering.
However, this is generally a positive change, providing a more balanced and responsive driving experience.
Suspension and Other Component Modifications
While a rear disc brake conversion generally works well with existing suspension components, considering some modifications can further optimize handling. Upgrading the sway bars, especially the rear sway bar, can help reduce body roll and improve stability. Stiffer springs, or adjusting the spring rates, can also help. A more thorough alignment after the conversion is highly recommended.
Consideration of these upgrades can significantly enhance the vehicle’s performance.
Typical Braking Distances
| Condition | Distance Before (Drum Brakes) | Distance After (Disc Brakes) |
|---|---|---|
| Stopping from 60 mph on a dry, paved surface | 180 feet | 150 feet |
| Stopping from 30 mph on a wet, paved surface | 120 feet | 90 feet |
| Stopping from 20 mph on an icy surface | 150 feet | 120 feet |
These examples demonstrate a notable reduction in stopping distances with disc brakes, particularly in wet and icy conditions. Note that these are estimates, and actual braking distances will vary based on several factors, including driver technique, road conditions, and vehicle load.
Further Considerations
Properly sized brake lines, hoses, and calipers are critical for optimal performance and safety. Properly maintaining the brake system, including regular fluid checks and bleedings, is essential for consistent and reliable performance. This is a key component of safe and efficient driving, and should not be overlooked.
Cost Analysis and Budget Planning
Getting your Fox Body Mustang’s rear brakes upgraded to discs is a worthwhile investment, but careful planning is key to avoiding sticker shock. Understanding the potential costs and having a budget in place will help you stay on track and avoid any unpleasant surprises. This section will break down the typical costs of components, provide a detailed cost breakdown, and show you ways to keep your project within budget.Planning your budget for a rear disc brake conversion is crucial.
The right approach will prevent overspending and allow you to maximize your investment. This careful planning allows you to adjust your project to fit your budget and stay within your financial goals.
Component Costs
Knowing the ballpark figures for various parts is essential before you dive into the project. Brake calipers, rotors, and pads vary in price depending on the quality and features. Master cylinders and associated hoses can also impact the total cost. Don’t forget about essential installation hardware and any potential labor costs.
Detailed Cost Breakdown
This section details the expected costs for a typical rear disc brake conversion, considering common components and their typical prices.
- Calipers: Expect to spend anywhere from $150 to $350 per caliper, depending on the brand and features.
- Rotors: Rotors typically range from $50 to $150 per rotor, again depending on the quality and size.
- Pads: Brake pads are relatively inexpensive, usually falling between $25 and $75 per set.
- Master Cylinder: The master cylinder upgrade could cost between $75 and $200, based on the brand and model.
- Hoses and Hardware: Expect to spend between $50 and $150 on necessary hoses and installation hardware.
- Labor: Consider professional installation to ensure quality work. This could range from $100 to $300, depending on the shop’s rates and your location.
Comparison of Conversion Options
The following table provides a comparison of different conversion options, highlighting costs and features. Choosing the right option depends on your priorities and budget.
| Option | Cost | Features |
|---|---|---|
| Option 1: Budget-Friendly | $500-$700 | Uses affordable, reliable aftermarket components. Suitable for those looking for a basic upgrade without breaking the bank. |
| Option 2: Performance-Oriented | $800-$1200 | Includes high-performance calipers and rotors for improved stopping power. Often includes upgraded hardware for optimal performance. |
| Option 3: Premium Upgrade | $1200-$1800 | Employs premium components and hardware for enhanced stopping power and aesthetics. May include specific features for better handling and braking response. |
Saving Money
A few strategies can help you save money during the conversion process:
- Shopping Around: Don’t settle for the first price you see. Compare prices from different vendors and online retailers.
- Used Parts: Look for used calipers, rotors, and other components in good condition to significantly reduce the upfront cost.
- DIY Installation: If you’re comfortable with automotive work, consider installing the parts yourself. This can significantly lower labor costs.
- Buying in bulk: Consider buying multiple components at once to potentially get better pricing.
Alternative Solutions
For those seeking cost-effective alternatives, consider re-using existing components or focusing on upgrading only the necessary parts, rather than a complete conversion. A careful evaluation of your specific needs will allow you to choose the most suitable and affordable solution.
Advanced Modifications and Customization
Taking your Fox Body Mustang’s rear disc brake conversion to the next level involves a blend of performance upgrades and aesthetic enhancements. This journey unlocks a world of personalized control and visual flair, transforming your braking system into a powerful and appealing centerpiece.Beyond the foundational conversion, a host of modifications can significantly improve braking performance, feel, and appearance. From high-performance components to refined aesthetics, the possibilities are as diverse as the Mustang community itself.
This exploration delves into these possibilities, offering a glimpse into the world of advanced braking system customizations.
High-Performance Braking Components
This section details the upgrade options available to significantly enhance the braking system’s performance. High-performance components like upgraded rotors and pads are crucial for optimized braking capability. Choosing the right components ensures superior stopping power and enhanced responsiveness.
- High-Performance Rotors: Upgrading to larger diameter rotors, often with superior ventilation designs, increases heat dissipation and improves braking performance, particularly during spirited driving. These rotors provide more surface area for friction, leading to a more effective braking experience. For instance, a 12-inch cross-drilled rotor from a reputable aftermarket supplier could significantly improve braking power.
- High-Performance Brake Pads: Selecting high-performance brake pads with specific compounds (e.g., ceramic or semi-metallic) optimizes braking performance by providing enhanced friction and heat resistance. Choosing the right pad compound is essential for maximizing braking capability and longevity. For example, racing-grade pads might offer better stopping power on a track, but they might not be as comfortable on daily driving roads.
Aesthetic Enhancements and Braking Feel
Beyond performance, consider the aesthetic appeal of your braking system. Custom brake calipers and lines can dramatically enhance the visual appeal while providing a more engaging driving experience. Furthermore, meticulous attention to detail enhances the braking feel.
- Custom Brake Calipers: Selecting custom-designed brake calipers from aftermarket manufacturers allows for a personalized touch. Different finishes, colors, and designs provide options to match the overall aesthetic of the Mustang. For example, a set of bright red calipers with a high-performance look could make a striking statement.
- Brake Lines: Replacing stock brake lines with braided stainless steel lines can improve braking feel and response. These lines are more resistant to pressure fluctuations and provide a smoother braking experience. Additionally, they enhance the visual appeal of the braking system.
Advanced Braking Systems
Integrating advanced braking systems, such as ABS (Anti-lock Braking System) upgrades or performance-oriented braking systems, can enhance the safety and control of your vehicle. Consider the level of performance you want to achieve.
- ABS Upgrades: Modern ABS systems provide enhanced safety and control in emergency braking situations. Depending on the application, these upgrades could improve the driver’s control, making braking more predictable. For instance, upgrading to a more advanced ABS module could improve braking responsiveness in challenging situations.
- Performance Braking Systems: Integrating specialized performance braking systems can provide exceptional braking power and control. These systems are designed for high-performance driving and deliver exceptional stopping power, especially in demanding situations. For example, a performance-oriented braking system with specialized components can improve overall braking performance in demanding driving conditions.
Visual Examples of Custom Brake System Setups
Imagine a Fox Body Mustang with a custom brake setup. The vehicle features 14-inch drilled and slotted rotors that provide exceptional stopping power. The custom brake calipers are finished in a vibrant blue hue, contrasting with the black brake lines and polished hubs. The visual effect enhances the overall aesthetic of the vehicle.Another example showcases a Mustang with a matte black finish for the calipers, rotors, and brake lines, creating a sleek and sophisticated appearance.
The high-performance brake pads ensure enhanced braking control. This setup delivers a powerful and visually appealing combination of performance and aesthetics.
