Upgrading from drum to disc brakes can dramatically improve your vehicle’s stopping power, fade resistance, and overall safety. However, not all conversion kits are created equal. We researched and compared the top options on the market, evaluating manufacturer specifications, industry safety standards, and aggregated owner feedback to help you choose the right kit for your car, truck, or SUV. Below, we break down the strengths and weaknesses of each, so you can make an informed decision.
| Photo | Product | Score | Buy |
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Wilwood Disc Brakes 140-11182-BK Rear Disc Brake Conversion Kit Best Overall Rear kit, fits Ford 8.8/9-inch axles, includes calipers, rotors, brackets, and parking brake |
9.0 | 🛒 Check Price |
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Power Stop K2721 Front and Rear Z36 Truck and Tow Disc Brake Kit Best for Trucks and Towing Front and rear kit, fits 1999-2007 Chevy Silverado/GMC Sierra 1500, includes slotted rotors and carbon-fiber ceramic pads |
8.7 | 🛒 Check Price |
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SSBC Brakes A132-1 Force 10 Rear Disc Brake Conversion Kit Best for Classic Cars Rear kit, fits 1964-1972 GM A-body (Chevelle, GTO, etc.), includes calipers, rotors, brackets, and parking brake cables |
8.4 | 🛒 Check Price |
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EBC Brakes GD7969 Stage 7 Front and Rear Disc Brake Kit Best Performance Upgrade Front and rear kit, fits 2011-2014 Ford Mustang GT, includes USR slotted rotors and Yellowstuff pads |
8.1 | 🛒 Check Price |
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Summit Racing SUM-760720 Rear Disc Brake Conversion Kit Best Budget Pick Rear kit, fits Ford 9-inch axle, includes calipers, rotors, and brackets, no parking brake |
7.8 | 🛒 Check Price |
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Baer Brakes 4261001P Track4 Front and Rear Disc Brake System Best for High-Performance Cars Front and rear kit, fits 2005-2014 Ford Mustang, includes 4-piston calipers and 14-inch rotors |
7.3 | 🛒 Check Price |
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Speedway Motors 91031000 Rear Disc Brake Conversion Kit Best for Hot Rods and Street Rods Rear kit, universal fit for Ford 9-inch and GM 10/12-bolt axles, includes calipers, rotors, and parking brake cables |
7.6 | 🛒 Check Price |
1. Wilwood Disc Brakes 140-11182-BK Rear Disc Brake Conversion Kit: Best Overall
The Wilwood 140-11182-BK rear disc brake conversion kit is our top pick for its outstanding performance, robust build quality, and thoughtful engineering. We compared its specifications against industry standards and found that the forged aluminum calipers and drilled/slotted rotors provide exceptional heat dissipation and fade resistance. Owner feedback consistently praises the improved pedal feel and stopping distance, especially during heavy use. The inclusion of a functional parking brake is a standout feature, as many conversion kits omit this, forcing owners to rely on aftermarket solutions.
However, this kit is not for everyone. Its premium construction comes at a higher price point, and it is specifically designed for Ford 8.8 and 9-inch rear axles, limiting compatibility. If you are on a tight budget or need a kit for a less common axle, this may not be the best fit. Additionally, installation requires moderate mechanical skill, and some owners noted that the instructions could be clearer. Skip this if you need a complete front-and-rear set or if your vehicle has a different axle configuration.
- High-quality forged aluminum calipers with stainless steel pistons resist corrosion
- Includes an integrated parking brake mechanism, rare in aftermarket kits
- Direct bolt-on design with pre-assembled components for easier installation
Pros: Excellent stopping power and modulation; Parking brake functionality works reliably
Cons: Premium pricing may not suit budget-conscious buyers
2. Power Stop K2721 Front and Rear Z36 Truck and Tow Disc Brake Kit: Best for Trucks and Towing
The Power Stop K2721 Z36 kit is a comprehensive front-and-rear conversion designed for trucks that see heavy loads. Our research into manufacturer specifications shows that the carbon-fiber ceramic pads and zinc-plated rotors offer excellent corrosion resistance and consistent performance under high heat. Aggregated owner feedback highlights significant improvements in stopping power when towing, with reduced brake fade on long descents. The kit is engineered as a direct bolt-on for several popular GM truck models, making it a convenient upgrade.
That said, the kit’s complexity can be a drawback. With front and rear components, installation requires more time and effort, and some owners reported that the included instructions lacked detail for certain steps. Additionally, the kit does not include a parking brake mechanism for the rear, so you will need to source a separate solution if your vehicle requires one. If you drive a light-duty car or prefer a simpler rear-only conversion, consider other options.
- Z36 carbon-fiber ceramic pads provide low dust and high stopping power
- Drilled and slotted rotors improve heat dissipation and wet performance
- Includes all necessary hardware and pre-lubricated calipers
Pros: Great for heavy-duty use like towing and hauling; Complete front and rear coverage
Cons: Installation can be time-consuming due to multiple components
3. SSBC Brakes A132-1 Force 10 Rear Disc Brake Conversion Kit: Best for Classic Cars
SSBC’s A132-1 kit is tailored for classic muscle car enthusiasts who want to upgrade to disc brakes without sacrificing originality. We evaluated its components against industry standards and found that the Dynalite calipers and cross-drilled rotors provide a noticeable improvement in stopping power over factory drums. Owner feedback from restoration forums indicates that the kit bolts on with minimal modification, and the inclusion of parking brake cables is a major convenience. The stainless steel lines also enhance pedal feel and longevity.
However, this kit is only compatible with a narrow range of GM A-body vehicles from the 1960s and early 1970s. If you own a different make or model, you will need to look elsewhere. Additionally, the single-piston calipers may not offer the same ultimate performance as multi-piston setups for aggressive driving. If you have a non-GM classic or require maximum braking for track use, consider a more universal kit.
- Retains original parking brake cables for a clean installation
- Dynalite single-piston calipers offer a balance of performance and weight savings
- Includes stainless steel brake lines for improved fluid flow
Pros: Designed specifically for classic GM A-bodies, preserving original look; Includes parking brake cables, simplifying installation
Cons: Limited to specific vehicle applications
4. EBC Brakes GD7969 Stage 7 Front and Rear Disc Brake Kit: Best Performance Upgrade
EBC’s Stage 7 kit is designed for performance enthusiasts who demand the best from their brakes. Our research into manufacturer data shows that the USR rotors and Yellowstuff pads deliver consistent high-friction performance even at elevated temperatures. Owner feedback from Mustang forums confirms that this kit significantly reduces stopping distances and resists fade during hard driving. The stainless steel lines also improve pedal feel and responsiveness.
However, the aggressive pad compound can produce some noise and dust under normal driving conditions, and the rotors may wear faster than standard units. Additionally, this kit is vehicle-specific and may not fit other models. If you use your car primarily for commuting, you might find the pads too grabby for smooth stops. Consider a more street-oriented kit if daily comfort is a priority.
- USR slotted rotors with curved vanes for improved cooling and dust ejection
- Yellowstuff pads offer high friction from cold with minimal fade
- Includes braided stainless steel brake lines for a firmer pedal
Pros: Excellent for track days and spirited driving; Low dust compared to many performance pads
Cons: Not ideal for daily driving due to aggressive pad compound
5. Summit Racing SUM-760720 Rear Disc Brake Conversion Kit: Best Budget Pick
The Summit Racing SUM-760720 kit offers a no-frills way to convert your rear drums to discs without breaking the bank. We compared its components to more expensive kits and found that while it lacks premium features like slotted rotors or multi-piston calipers, the basic design is solid and functional. Owner feedback indicates that it provides a noticeable improvement over drum brakes for street driving, with easier installation thanks to the minimal parts count.
However, the absence of a parking brake mechanism is a significant limitation for street-driven vehicles. You will need to purchase an aftermarket line lock or mechanical parking brake kit separately, adding cost and complexity. Additionally, the calipers are basic single-piston units that may not offer the same clamping force as higher-end options. If you need a parking brake for daily use or have a vehicle that requires it for inspection, this kit may not be suitable.
- Affordable entry into disc brake conversion without sacrificing essential quality
- Includes powder-coated brackets for corrosion resistance
- Compatible with many aftermarket axles and housing ends
Pros: Budget-friendly option for cost-conscious builders; Simple design with fewer parts to install
Cons: No parking brake provision, requires separate solution
6. Baer Brakes 4261001P Track4 Front and Rear Disc Brake System: Best for High-Performance Cars
The Baer Track4 system is a serious braking upgrade for those who push their cars to the limit on the track. We evaluated its specifications and found that the 4-piston calipers and 14-inch rotors offer immense stopping power and heat capacity. Owner feedback from road course enthusiasts confirms that this kit can handle repeated hard braking without fading, making it ideal for competitive driving. The included stainless steel lines and high-temperature components ensure reliability under extreme conditions.
However, this kit comes with a high price tag and requires larger wheels (18 inches or more) to clear the massive rotors. It is also overkill for street driving, where the brakes may feel overly aggressive and the rotors can be prone to warping if not properly bedded. Additionally, installation is complex and may require professional fitting. If you do not track your car or have a limited budget, this kit is not recommended.
- Massive 14-inch rotors and 4-piston calipers for extreme stopping power
- Designed for track use with high-temperature seals and dust boots
- Includes aluminum hubs and stainless steel lines
Pros: Exceptional fade resistance for track days; Large rotor surface area provides strong initial bite
Cons: Very expensive and may be overkill for street use
7. Speedway Motors 91031000 Rear Disc Brake Conversion Kit: Best for Hot Rods and Street Rods
Speedway Motors’ universal rear disc brake kit is a popular choice among hot rod builders who need flexibility. We researched its compatibility and found that the included brackets allow it to fit common Ford and GM axles with minimal modification. Owner feedback highlights that the parking brake cables can be adapted to various chassis, a significant advantage for custom builds. The kit provides a solid improvement in braking performance over drums, with better modulation and fade resistance.
However, some owners have reported issues with fitment requiring additional shimming or grinding, and the overall build quality is not as refined as premium kits. The rotors and calipers are functional but may not offer the same longevity as higher-end options. If you are building a show car that demands perfection, you might want to invest in a more polished kit. But for a budget-conscious hot rod project, this kit offers a good balance of features and cost.
- Universal design fits multiple axle types with included brackets
- Includes parking brake cables that can be adapted to most chassis
- Powder-coated calipers and rotors for durability
Pros: Versatile fitment for custom builds; Includes parking brake cables, a plus for street rods
Cons: Quality control can be inconsistent based on owner reports
Frequently Asked Questions
Is a drum to disc brake conversion worth it?
Yes, for most drivers, the upgrade provides significantly better stopping power, reduced brake fade during repeated use, and improved pedal feel. Disc brakes also perform better in wet conditions and are easier to maintain. However, the cost and installation effort may not be justified for low-performance daily drivers that never see heavy use.
Do I need to replace the master cylinder for a disc brake conversion?
Often yes. Disc brakes require a higher fluid volume and pressure than drums. Many conversion kits recommend upgrading to a disc brake compatible master cylinder or adding a proportioning valve to prevent rear lockup. Check the kit’s instructions and your vehicle’s specific requirements.
Will a disc brake conversion affect my parking brake?
It depends on the kit. Some kits include a mechanical parking brake mechanism that works with your existing cable, while others omit it entirely. If your vehicle requires a parking brake for daily use or inspection, choose a kit that retains this function or plan to add an aftermarket solution.
Can I install a drum to disc conversion kit myself?
Many kits are designed as bolt-on upgrades for intermediate DIYers with basic mechanical skills. You will need common hand tools, a jack, and jack stands. However, some kits may require welding, grinding, or brake line fabrication. Always read the instructions and assess your skill level before starting.
How do I choose the right conversion kit for my vehicle?
First, identify your vehicle’s axle type and bolt pattern. Then consider your driving needs: street, towing, or track. Look for kits with good owner feedback and clear instructions. Ensure the kit includes all necessary hardware, such as calipers, rotors, brackets, and brake lines. Avoid kits that require extensive modification unless you have fabrication skills.
Our Verdict
After researching and comparing the top drum to disc brake conversion kits, our top pick is the Wilwood 140-11182-BK for its superior build quality, integrated parking brake, and outstanding performance. For truck owners who tow, the Power Stop K2721 Z36 kit offers excellent value and stopping power. If you have a classic car, the SSBC A132-1 provides a faithful upgrade with minimal modifications. Choose based on your vehicle’s specific needs and your budget.
