A system incorporating a braking mechanism directly onto the driveshaft offers a supplemental or emergency stopping solution for vehicles. This type of system is particularly useful for vehicles experiencing failure in their primary hydraulic braking systems, providing a critical backup. A typical setup includes a caliper, rotor, and actuating mechanism, often cable-operated, affixed to the driveshaft itself.
This approach provides a significant safety advantage, especially for heavier vehicles or those operating in challenging terrain. By targeting the driveshaft, braking force is applied independently of the conventional wheel brakes, mitigating the risk of complete brake failure. Historically, such systems have been employed in industrial applications and specialized vehicles, and their adaptation to broader automotive use continues to evolve with advancements in materials and design. The inherent simplicity and robustness of these systems make them highly reliable and relatively low-maintenance.
Further exploration of this topic will cover key components, installation procedures, operational considerations, and potential advantages and disadvantages of incorporating a driveshaft-mounted braking system into various vehicle types.
1. Safety Backup
A critical function of a driveshaft parking brake kit lies in its role as a safety backup. Conventional hydraulic braking systems, while generally reliable, are susceptible to failures stemming from leaks, component malfunctions, or fluid contamination. A driveshaft brake, operating independently of the hydraulic system, provides a crucial secondary braking mechanism, mitigating the risk of catastrophic brake loss. This redundancy is particularly valuable in situations requiring absolute braking control, such as descending steep inclines or navigating hazardous road conditions. For example, should a hydraulic line rupture, the driveshaft brake offers a vital safeguard, allowing for controlled deceleration and preventing runaway situations. This backup capability significantly enhances vehicle safety and driver peace of mind.
The importance of this safety backup extends beyond typical driving scenarios. In commercial vehicle applications, such as heavy trucking or towing, the added security provided by a driveshaft brake proves invaluable. The increased weight and momentum of these vehicles amplify the consequences of brake failure. A driveshaft brake offers a robust and independent means of slowing and stopping, reducing the risk of accidents and enhancing overall operational safety. Furthermore, in off-road or emergency situations, where primary braking systems may be compromised by environmental factors or mechanical damage, a driveshaft brake offers a crucial last line of defense.
In summary, the safety backup provided by a driveshaft parking brake kit represents a crucial aspect of its functionality. By offering redundancy to the primary hydraulic system, this mechanism mitigates the risks associated with brake failure, enhancing driver safety and operational reliability across a range of vehicle types and operating conditions. Integrating this backup system addresses critical safety concerns and contributes to a more robust and resilient braking solution.
2. Emergency Stopping
Emergency stopping situations necessitate a reliable and independent braking solution. A driveshaft parking brake kit offers a crucial secondary braking mechanism, operating independently of the primary hydraulic system. This independence proves vital when conventional brakes fail or become compromised, providing a critical backup for controlled deceleration.
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Redundancy and Reliability
Driveshaft brakes provide essential redundancy in braking systems. In scenarios like hydraulic fluid leaks or mechanical failures within the primary system, the driveshaft brake acts as a failsafe, enabling the driver to maintain control and bring the vehicle to a safe stop. This redundancy is particularly critical for heavier vehicles where momentum significantly increases stopping distances. For instance, a loaded truck experiencing a sudden brake line failure on a downhill slope would face dire consequences without a secondary braking system.
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Independent Operation
A key advantage of a driveshaft brake lies in its independent operation. Unlike traditional parking brakes that typically engage the rear wheels, a driveshaft brake acts directly upon the driveshaft. This isolation from the primary braking system ensures functionality even when other components malfunction. For example, if a wheel cylinder seizes, rendering conventional brakes on that axle useless, the driveshaft brake can still effectively decelerate the vehicle. This independence is paramount for maintaining control in critical situations.
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Controlled Deceleration
Driveshaft brakes offer controlled deceleration during emergency stops, even in challenging circumstances. While not designed for panic stops from high speeds, they provide a measured and predictable means of slowing the vehicle, particularly when primary braking systems are compromised. Imagine a scenario where a vehicle experiences brake fade during a long descent. The driveshaft brake can be applied to supplement the weakened primary brakes, preventing excessive speed and maintaining control.
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Enhanced Safety Margin
The presence of a driveshaft brake adds a significant safety margin, particularly in demanding environments. For vehicles operating off-road, in mountainous terrains, or carrying heavy loads, this secondary braking system provides an additional layer of protection. Consider a scenario where a vehicles primary brakes overheat during a steep descent. The driveshaft brake can be engaged intermittently to manage speed and prevent overheating of the primary system, significantly improving overall safety.
In conclusion, the ability of a driveshaft parking brake kit to provide independent and controlled deceleration during emergency situations highlights its value as a critical safety component. The redundancy and independent operation ensure a reliable backup for bringing a vehicle to a safe stop, even when primary braking systems fail. This capability enhances the safety margin, especially for vehicles operating in challenging conditions or carrying heavy loads, where the consequences of brake failure can be particularly severe.
3. Driveshaft Mounted
The “driveshaft mounted” characteristic of a driveshaft parking brake kit is fundamental to its operation and distinguishes it from other braking systems. Mounting the brake assembly directly onto the driveshaft offers several crucial advantages, primarily centered around independence and reliability. Because the system bypasses the conventional wheel-end braking components, such as rotors, calipers, and brake lines at the wheels, it remains functional even if those components fail. This independence is critical in emergencies, such as a hydraulic line rupture or a seized wheel cylinder. For example, if a vehicle experiences a complete loss of hydraulic pressure, rendering the foot brake useless, the driveshaft brake can still engage and bring the vehicle to a controlled stop. This direct action on the driveshaft ensures consistent deceleration regardless of individual wheel conditions, offering a higher degree of reliability in challenging situations.
Furthermore, the driveshaft mounting configuration simplifies the installation process. Rather than integrating with the complex wheel-end assemblies, the kit typically mounts onto a dedicated section of the driveshaft, often near the differential. This centralized location streamlines maintenance and accessibility for inspections and adjustments. Consider a scenario where a fleet operator needs to inspect the braking systems on multiple vehicles. The centralized location of the driveshaft brake allows for quicker and easier inspection compared to checking individual wheel brakes. This simplified maintenance reduces downtime and operational costs. Moreover, the direct application of braking force to the driveshaft provides robust and predictable deceleration, especially beneficial for heavier vehicles or those operating in challenging terrains like off-road environments or steep inclines. The consistent engagement, unaffected by wheel slippage or individual wheel brake issues, enhances control and safety in demanding conditions.
In summary, the driveshaft mounted design is integral to the functionality and effectiveness of the driveshaft parking brake kit. This configuration offers critical advantages in terms of reliability, independence from the primary braking system, ease of installation and maintenance, and consistent performance in challenging operating conditions. Understanding the significance of the driveshaft mounted design is essential for appreciating the enhanced safety and operational reliability this system provides. This configuration is a key factor in the kit’s ability to provide a robust and independent braking solution, vital for mitigating the risks associated with brake failure and ensuring driver safety.
4. Caliper and Rotor
The caliper and rotor assembly forms the core braking mechanism within a driveshaft parking brake kit. Analogous to conventional wheel brakes, the caliper, containing pistons and brake pads, clamps onto a rotor fixed to the driveshaft. This clamping action generates friction, converting kinetic energy into heat and slowing the driveshaft’s rotation. The effectiveness of this process depends on the caliper’s clamping force and the rotor’s ability to dissipate heat. A heavy-duty truck descending a steep grade, for instance, relies on the robust construction of the caliper and the heat-dissipation capacity of the rotor to provide consistent and reliable braking force. Proper material selection and design are crucial for ensuring performance and longevity under various operating conditions.
Several factors influence the caliper and rotor selection for a specific driveshaft brake application. Vehicle weight, anticipated operating conditions, and required braking force dictate the necessary caliper piston size and rotor diameter. A larger rotor offers increased surface area for heat dissipation, crucial for heavy-duty applications. Similarly, a caliper with larger pistons generates greater clamping force, essential for effectively slowing heavier vehicles or those operating in demanding environments. Consider a mining vehicle operating on steep inclines; it necessitates a robust caliper and rotor assembly capable of withstanding high thermal loads and providing consistent braking performance. Material selection is equally critical. Rotors made from high-quality cast iron or composite materials offer excellent heat dissipation and durability. Caliper construction must also withstand the stresses of repeated braking cycles and environmental exposure.
Understanding the function and selection criteria for the caliper and rotor assembly within a driveshaft parking brake kit is crucial for ensuring optimal braking performance and safety. Correctly matching these components to the specific application ensures reliable and predictable deceleration, even in challenging conditions. Ignoring these considerations could lead to inadequate braking performance, premature component wear, or even system failure, compromising safety and operational efficiency. Therefore, careful consideration of these factors is paramount when integrating a driveshaft braking system into any vehicle.
5. Cable Actuated
Cable actuation frequently serves as the engagement method for driveshaft parking brake kits, offering a simple, reliable, and cost-effective solution. A steel cable, typically routed from a lever or handle within the vehicle’s cabin, connects to the caliper mechanism on the driveshaft. Pulling the lever or handle tensions the cable, actuating the caliper and engaging the brake. This mechanical linkage provides a direct and positive connection between the driver’s input and the braking mechanism. This simplicity translates to fewer potential points of failure compared to more complex hydraulic or electronic systems. Consider a scenario where an off-road vehicle traverses a muddy or watery environment. A cable-actuated system, with its minimal electronic components, offers enhanced resistance to environmental factors that might compromise electronic systems. The robust nature of the cable also contributes to its reliability in harsh operating conditions.
The practical implications of cable actuation extend beyond simplicity and reliability. The linear nature of cable movement allows for precise control over braking force. The further the lever is pulled, the greater the tension on the cable, resulting in increased clamping force at the caliper. This proportional control enables drivers to modulate the braking effect based on the specific situation, such as holding a vehicle on an incline or providing supplemental braking during a descent. For example, a truck driver navigating a steep mountain pass can precisely adjust the driveshaft brake to maintain a safe descent speed, supplementing the service brakes and preventing overheating. Additionally, the relatively low cost and ease of maintenance associated with cable-actuated systems contribute to their popularity. Cable replacement, a typical maintenance procedure, is generally straightforward and less expensive compared to servicing hydraulic or electronic components.
In summary, cable actuation within a driveshaft parking brake kit provides a balance of simplicity, reliability, control, and affordability. The direct mechanical linkage offers a robust and predictable response, minimizing potential points of failure and simplifying maintenance. The proportional control afforded by cable actuation enables drivers to fine-tune the braking force as needed, enhancing safety and operational flexibility. While other actuation methods exist, the practical advantages of cable operation make it a prevalent choice for many driveshaft brake applications, particularly in demanding or off-road environments.
6. Installation Procedure
Correct installation is crucial for the safe and effective operation of a driveshaft parking brake kit. A properly installed system ensures reliable braking performance and minimizes the risk of premature component wear or failure. Understanding the installation process is essential for both professional mechanics and individuals undertaking self-installation. This section explores the key facets of the installation procedure, highlighting important considerations for achieving optimal functionality and safety.
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Pre-Installation Assessment
Before beginning the installation, a thorough assessment of the vehicle’s driveshaft, surrounding components, and available space is necessary. This assessment ensures compatibility and identifies potential clearance issues. Measurements must be taken to confirm adequate space for the caliper, rotor, and actuation mechanism. For example, verifying sufficient clearance between the driveshaft-mounted rotor and the vehicle’s undercarriage prevents interference and ensures proper operation. Ignoring this step could lead to improper fitment and compromise system functionality.
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Component Mounting
Precise mounting of the caliper and rotor assembly onto the driveshaft is critical. The rotor must be securely fixed to the driveshaft, often requiring specialized tools or techniques. The caliper must be aligned correctly with the rotor to ensure even pad contact and optimal braking performance. For instance, improper alignment could lead to uneven pad wear, reduced braking efficiency, and potential damage to the rotor. Following manufacturer-specific instructions and utilizing appropriate tools is essential for achieving correct component mounting.
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Cable Routing and Adjustment
Proper routing and adjustment of the actuation cable are essential for reliable and consistent brake engagement. The cable must be routed along a path that avoids interference with other vehicle components and allows for smooth operation. Proper tension adjustment ensures sufficient clamping force when the brake is engaged while preventing excessive drag or premature wear. For example, routing the cable too close to the exhaust system could lead to heat damage and premature cable failure. Careful cable routing and precise adjustment are critical for long-term system reliability and performance.
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Post-Installation Testing
Thorough testing after installation verifies proper system functionality and safety. This testing should include operational checks of the brake engagement and release, ensuring smooth and consistent performance. Testing should also involve verifying proper cable tension and confirming that the braking force is adequate for the vehicle’s weight and operating conditions. For instance, testing the brake on a slight incline verifies its holding ability. Neglecting post-installation testing could leave potential issues undetected, compromising safety and reliability.
Proper installation of a driveshaft parking brake kit is paramount for ensuring its effectiveness as a critical safety component. Each step, from pre-installation assessment to post-installation testing, plays a crucial role in achieving optimal functionality and reliability. By adhering to manufacturer guidelines and employing meticulous attention to detail, installers can ensure that the system performs as intended, providing a reliable backup braking solution and enhancing overall vehicle safety.
7. Maintenance Requirements
Maintaining a driveshaft parking brake kit is crucial for ensuring its long-term reliability and effectiveness as a critical safety component. Regular maintenance mitigates the risk of component failure, preserves braking performance, and extends the system’s operational lifespan. Neglecting these requirements can lead to decreased braking efficiency, potential system malfunctions, and compromised safety. For example, a corroded cable can result in delayed or incomplete brake engagement, posing a significant safety hazard, especially in emergency situations. Regular inspection and lubrication of the cable are essential preventative measures.
Specific maintenance tasks vary depending on the kit’s design and the vehicle’s operating conditions. However, several key areas require regular attention. Periodic inspection of the caliper and rotor assembly is crucial for detecting signs of wear or damage. Brake pad wear should be monitored, and pads replaced as needed to maintain optimal braking performance. The rotor should be checked for signs of scoring, cracking, or excessive wear. For instance, a heavily loaded truck operating in mountainous terrain will experience increased wear on the rotor and pads compared to a lighter vehicle operating under normal conditions. Adjusting maintenance schedules to reflect these operating conditions is essential for preserving system integrity. Furthermore, the actuation cable requires regular lubrication and inspection for fraying or damage. A damaged cable must be replaced promptly to ensure reliable brake engagement. In harsh environments, such as off-road applications or regions with frequent exposure to road salt, more frequent inspections and maintenance are necessary to combat accelerated wear and corrosion.
In conclusion, adherence to a comprehensive maintenance schedule is essential for maximizing the lifespan and reliability of a driveshaft parking brake kit. Regular inspections, lubrication, and timely component replacement prevent potential malfunctions and ensure consistent braking performance. Understanding the specific maintenance requirements and adapting them to the vehicle’s operating conditions are crucial for preserving the system’s effectiveness as a critical safety backup. This proactive approach to maintenance minimizes downtime, reduces repair costs, and most importantly, ensures driver safety by maintaining the integrity of this essential braking system.
8. Vehicle Compatibility
Vehicle compatibility is paramount when considering a driveshaft parking brake kit. Compatibility encompasses several crucial factors, including driveshaft dimensions, available mounting space, and overall vehicle architecture. Driveshaft diameter and length influence the selection of an appropriately sized rotor and caliper assembly. Insufficient clearance around the driveshaft can preclude installation altogether. For example, a vehicle with a complex suspension setup or tightly packed undercarriage components might lack the necessary space to accommodate a driveshaft brake. Furthermore, the vehicle’s weight and intended use significantly influence compatibility. Heavier vehicles or those used for towing require kits designed for higher braking loads. A lightweight passenger car, conversely, might not require the same robust braking capacity as a heavy-duty truck. Overlooking compatibility issues can lead to improper fitment, reduced braking performance, and potential interference with other vehicle components, compromising safety and operational efficiency.
Assessing vehicle compatibility involves careful consideration of technical specifications and practical limitations. Consulting the kit manufacturer’s documentation and verifying measurements against the vehicle’s driveshaft and surrounding components are crucial steps. Understanding the intended use of the vehicle, including load capacity and operating environment, helps determine the appropriate kit specifications. For instance, a vehicle intended for off-road use in challenging terrain requires a more robust kit compared to a vehicle used primarily for on-road driving. Practical considerations, such as access for installation and maintenance, also influence compatibility. A vehicle with limited access to the driveshaft area might present challenges during installation or servicing, potentially negating the benefits of the system. Therefore, thorough pre-installation assessment is critical for ensuring compatibility and avoiding costly or time-consuming modifications.
In conclusion, vehicle compatibility serves as a foundational element for successful integration of a driveshaft parking brake kit. Careful consideration of driveshaft dimensions, available space, vehicle weight, intended use, and practical access considerations are crucial for ensuring proper fitment and optimal performance. Neglecting these factors can compromise safety, reduce braking effectiveness, and lead to costly rework. Thorough due diligence in assessing compatibility is essential for maximizing the benefits of this valuable safety system and ensuring its long-term reliability.
9. Supplemental Braking
Supplemental braking systems, such as those provided by a driveshaft parking brake kit, offer a crucial layer of redundancy and enhanced safety in various vehicle applications. These systems function independently of primary service brakes, providing a backup stopping mechanism in critical situations. This supplemental braking capacity is particularly valuable for heavier vehicles, vehicles operating in challenging terrains, or those carrying heavy loads. Consider a scenario where a delivery truck experiences a partial failure of its hydraulic braking system while descending a steep incline. The supplemental braking offered by a driveshaft brake can be engaged to provide controlled deceleration, preventing a runaway situation and averting a potentially catastrophic accident. The ability to engage a separate braking system independent of the primary system significantly enhances safety margins and mitigates the risks associated with brake failure.
The practical significance of supplemental braking extends beyond emergency situations. In routine operations, a driveshaft brake can contribute to increased control and stability, particularly when descending steep grades or navigating challenging off-road environments. By engaging the driveshaft brake, drivers can reduce strain on the primary braking system, minimizing the risk of overheating and brake fade. This capability is particularly beneficial for heavy-duty trucks or vehicles towing trailers, where prolonged braking can generate significant heat buildup in the primary system. Furthermore, the use of supplemental braking can extend the service life of primary brake components, reducing maintenance costs and downtime. For instance, in mining or construction applications, where vehicles frequently operate on steep inclines, the judicious use of a driveshaft brake can significantly reduce wear and tear on the primary braking system, leading to substantial cost savings over time.
In summary, supplemental braking systems, exemplified by driveshaft parking brake kits, play a crucial role in enhancing vehicle safety and operational efficiency. By providing an independent braking mechanism, these systems mitigate the risks associated with primary brake failure, offer increased control in demanding conditions, and contribute to reduced maintenance costs. Understanding the importance of supplemental braking and its practical applications is essential for maximizing vehicle safety and operational reliability, particularly in challenging environments or when operating heavy vehicles and trailers.
Frequently Asked Questions
This section addresses common inquiries regarding driveshaft parking brake kits, providing concise and informative responses to clarify potential uncertainties and misconceptions.
Question 1: How does a driveshaft parking brake differ from a conventional parking brake?
Conventional parking brakes typically engage the rear wheels, while a driveshaft brake acts directly on the driveshaft, providing independent braking action regardless of wheel conditions. This distinction makes driveshaft brakes particularly reliable in situations where wheel-based braking systems might be compromised.
Question 2: What are the primary advantages of installing a driveshaft parking brake kit?
Key advantages include enhanced safety through redundant braking capacity, improved control during descents or in challenging terrains, and reduced wear on primary service brakes, potentially extending their lifespan. These benefits contribute to increased operational reliability and driver peace of mind.
Question 3: Are driveshaft parking brakes suitable for all vehicle types?
While beneficial for many vehicles, driveshaft brakes are not universally suitable. Compatibility depends on factors such as driveshaft dimensions, available mounting space, vehicle weight, and intended use. Careful consideration of these factors is crucial before installation.
Question 4: What maintenance is required for a driveshaft parking brake system?
Regular maintenance includes periodic inspection of the caliper, rotor, and actuation cable. Brake pad replacement, cable lubrication, and rotor inspection are essential for ensuring continued performance and reliability. Maintenance frequency depends on operating conditions.
Question 5: Can a driveshaft parking brake be used as a primary braking system?
Driveshaft brakes are designed as supplemental or emergency braking systems, not as primary braking systems. They provide a critical backup in case of primary brake failure but are not intended for routine stopping.
Question 6: How does the installation process typically proceed?
Installation involves careful assessment of the vehicle’s driveshaft and surrounding components, precise mounting of the caliper and rotor assembly, correct cable routing and adjustment, and thorough post-installation testing to ensure proper functionality.
Understanding these key aspects of driveshaft parking brake kits aids in informed decision-making regarding their suitability and application. Consulting with qualified professionals can provide further clarification and address specific vehicle requirements.
The subsequent section will delve into specific applications and case studies showcasing the practical benefits of driveshaft parking brake systems.
Tips for Utilizing a Driveshaft Parking Brake Kit
Effective utilization of a driveshaft parking brake kit requires understanding its operational characteristics and adhering to recommended practices. These tips provide guidance for maximizing the system’s safety and performance benefits.
Tip 1: Regular Inspection: Regular visual inspections of the caliper, rotor, and cable are crucial for identifying potential issues before they escalate. Look for signs of wear, damage, or corrosion. A frayed cable, for instance, requires immediate replacement to ensure reliable operation. Regular inspection schedules should align with the vehicle’s operating conditions and manufacturer recommendations.
Tip 2: Proper Cable Adjustment: Maintaining correct cable tension is essential for optimal braking performance. Insufficient tension can lead to inadequate braking force, while excessive tension can cause premature wear and drag. Periodic adjustments, following manufacturer guidelines, ensure consistent and reliable brake engagement.
Tip 3: Judicious Application: While designed for emergencies and supplemental braking, judicious application prolongs the system’s lifespan. Avoid engaging the brake unnecessarily, especially at high speeds, to minimize wear and tear. Understanding the appropriate use cases maximizes the system’s effectiveness and longevity.
Tip 4: Professional Installation: Professional installation is highly recommended for ensuring proper system integration and functionality. Qualified mechanics possess the expertise and tools to perform a precise installation, minimizing the risk of errors and maximizing system reliability.
Tip 5: Compatibility Confirmation: Before purchasing a kit, thorough compatibility assessment with the specific vehicle is essential. Driveshaft dimensions, available mounting space, and vehicle weight must be considered to ensure proper fitment and optimal braking performance.
Tip 6: Environmental Considerations: Operating environments, such as frequent exposure to water, mud, or road salt, can accelerate wear and corrosion. More frequent inspections and maintenance are necessary in harsh conditions to preserve system integrity and performance.
Tip 7: Understanding Limitations: Driveshaft brakes are designed as supplemental systems, not primary braking systems. Relying solely on a driveshaft brake for routine stopping is unsafe and can lead to premature system failure. Understanding the system’s limitations is crucial for safe and effective operation.
Adhering to these tips ensures the driveshaft parking brake kit functions reliably and provides the intended safety benefits. Proper maintenance, judicious application, and understanding the system’s limitations are essential for maximizing its effectiveness and operational lifespan.
The following conclusion summarizes the key takeaways and reinforces the importance of driveshaft parking brake kits in enhancing vehicle safety and operational reliability.
Conclusion
Driveshaft parking brake kits offer a crucial enhancement to vehicle safety and operational reliability. This exploration has detailed their function as a supplemental braking system, independent of conventional hydraulic brakes. Key components, including the caliper, rotor, and cable actuation mechanism, work in concert to provide reliable stopping power directly at the driveshaft. Proper installation, diligent maintenance, and a clear understanding of vehicle compatibility are essential for maximizing system effectiveness. Furthermore, the importance of supplemental braking, particularly in demanding operating conditions or for heavier vehicles, underscores the value of these kits in mitigating risks associated with primary brake failure.
The integration of driveshaft parking brake kits represents a significant advancement in vehicle safety technology. Continued development and refinement of these systems promise further enhancements to braking performance and reliability. Wider adoption of these kits, driven by increasing awareness of their safety benefits, can contribute to a significant reduction in accidents related to brake failure. The potential for improved safety and operational efficiency warrants serious consideration of driveshaft brake systems for a wide range of vehicle applications.
