An aftermarket modification designed for the 1999 Jeep Cherokee (XJ) involves replacing the vehicle’s factory suspension arms with longer alternatives. This typically includes control arms for both the front and rear axles, along with associated hardware like brackets and bushings. These extended components are intended to improve off-road performance.
The installation of extended suspension arms offers several potential advantages. By increasing the distance between the chassis mounting point and the axle, the suspension’s arc of motion is flattened. This alteration can lead to improved articulation, allowing the vehicle to navigate uneven terrain more effectively. Furthermore, such a modification can enhance ride quality, especially when paired with a lifted suspension, by reducing the severity of driveline angles and minimizing bump steer. This type of upgrade is often sought after by off-road enthusiasts looking to maximize the capabilities of their vehicle.
The subsequent sections will delve into the specific considerations for selecting and installing such an upgrade. This will include factors like material selection, compatibility with other modifications, and the potential impact on on-road handling characteristics.
1. Articulation Improvement
The promise of enhanced articulation is often the primary driver behind the decision to install a “1999 jeep cherokee long arm kit.” It’s the pursuit of conquering challenging terrains, the desire to push the vehicle’s limits, and the need to maintain traction where others falter. Articulation, in this context, refers to the suspension’s ability to allow the wheels to move independently, maintaining contact with the ground even on severely uneven surfaces. The factory setup, while adequate for general use, often proves limiting when faced with rocks, ruts, and steep inclines. The extended arms are intended to address this deficiency, unlocking the vehicle’s latent off-road potential.
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Increased Travel Range
Long arms increase the suspension travel by allowing the axles to move through a greater range of motion without binding. This is because the increased length provides a flatter arc of movement, reducing the angle at which the axle pulls on the springs and shocks. A greater travel range means a wheel can drop further into a hole or climb higher onto an obstacle, keeping the tire in contact with the terrain for longer. This contact translates directly into improved traction and control, allowing the vehicle to navigate obstacles that would otherwise be impassable.
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Reduced Binding
Shorter, factory control arms can bind when the suspension is flexed to its extremes, especially when paired with a lift kit. This binding restricts movement, reducing the effective articulation and potentially damaging the suspension components. Longer arms alleviate this issue by decreasing the angles at which the arms operate, minimizing stress on the joints and allowing for smoother, more controlled movement. This reduction in binding contributes to a more predictable and stable off-road experience.
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Optimized Geometry
The geometry of the suspension system is crucial for maintaining proper handling both on and off-road. Long arms allow for adjustments to the caster angle, which affects steering stability and return-to-center feel. Correcting the caster angle, especially after installing a lift kit, improves the vehicle’s handling characteristics and reduces wandering, leading to a safer and more enjoyable driving experience. This optimization of suspension geometry is a key benefit of a long arm conversion.
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Enhanced Stability
Greater articulation isn’t just about navigating obstacles; it also contributes to overall stability. By allowing the wheels to conform to the terrain, the vehicle’s center of gravity remains more stable, reducing the risk of rollovers. This enhanced stability provides the driver with more confidence and control, especially on challenging trails. It allows for steeper climbs, more aggressive descents, and greater overall maneuverability in off-road environments. A well-engineered long arm kit plays a significant role in fostering this stability.
The relationship between articulation improvement and a “1999 jeep cherokee long arm kit” is a story of transforming limitations into capabilities. It’s about equipping a classic off-road vehicle with the tools it needs to excel in challenging environments. The benefits extend beyond simply conquering obstacles; they encompass improved stability, enhanced control, and a greater sense of confidence behind the wheel. The selection of a long arm kit is an investment in the vehicle’s off-road potential, unlocking a new level of performance and adventure.
2. Driveline Angle Correction
The story of a “1999 jeep cherokee long arm kit” is, in part, a story of angles. Specifically, the acute angles formed by the driveline the rotating shaft transmitting power from the transmission to the axles. The tale begins with a lift, a desire to elevate the vehicle for greater clearance. Yet, this elevation, while visually appealing and functionally beneficial in certain contexts, creates a problem: exaggerated driveline angles. These increased angles induce vibrations, premature wear on U-joints, and a general degradation of the driving experience. The “1999 jeep cherokee long arm kit”, therefore, enters the narrative as a protagonist, a solution designed to mitigate these unintended consequences.
Imagine the Jeep, lifted several inches above its factory stance. Without intervention, the driveline angles become severe. Each rotation of the driveshaft becomes a struggle, a mechanical protest against the altered geometry. The vibrations resonate through the chassis, a constant reminder of the system’s inefficiency. A long arm kit, by repositioning the axles and optimizing the control arm angles, effectively corrects these driveline angles. This correction reduces stress on the U-joints, extending their lifespan and minimizing the risk of failure. Moreover, it diminishes vibrations, restoring a smoother, more comfortable ride quality. For instance, picture a rock crawler, its axles flexing dramatically over uneven terrain. A properly installed kit ensures that the driveline angles remain within acceptable parameters, preventing catastrophic failure in a critical moment.
Ultimately, the importance of driveline angle correction within the context of a “1999 jeep cherokee long arm kit” cannot be overstated. Its not merely an optional add-on but an integral part of a well-engineered system. Without it, the benefits of increased articulation and ground clearance are offset by the potential for mechanical damage and a compromised driving experience. The long arm kit, therefore, serves as a crucial intervention, ensuring that the lifted vehicle operates within its design parameters, balancing off-road capability with on-road drivability.
3. On-Road Handling Impact
The installation of a “1999 jeep cherokee long arm kit” presents a critical crossroads, a divergence from the stock configuration that invariably affects the vehicle’s behavior on paved surfaces. The narrative of off-road enhancement often neglects the subsequent chapter, the adaptation to the daily commute, the highway cruise, the mundane reality of on-road driving. The factory suspension, engineered for a balance of comfort and control, yields to a system designed primarily for articulation and obstacle clearance. This transformation, while beneficial in extreme conditions, introduces new variables into the equation of on-road handling, demanding careful consideration and precise calibration.
Consider the lifted Jeep, now equipped with extended control arms. The increased ground clearance, once a coveted advantage on the trail, becomes a liability on the asphalt. The center of gravity rises, diminishing stability in corners and increasing susceptibility to body roll. The altered suspension geometry, while optimizing off-road performance, can introduce vagueness in steering response, a disconcerting lack of precision at highway speeds. A vehicle that once tracked confidently now requires constant correction, a subtle but persistent reminder of the compromise made in the pursuit of off-road prowess. However, the outcome is not predetermined. Careful selection of components, meticulous attention to alignment specifications, and the implementation of appropriate dampening solutions can mitigate these adverse effects. High-quality shocks, for instance, can compensate for the increased body roll, providing a measure of control that would otherwise be lost. Adjustable control arms allow for fine-tuning of caster and pinion angles, restoring a semblance of on-road composure. The story is not one of inevitable degradation but rather one of adaptation and refinement.
Ultimately, the impact on on-road handling is an unavoidable aspect of the “1999 jeep cherokee long arm kit” narrative. It represents a trade-off, a calculated decision to prioritize off-road capability at the potential expense of on-road comfort and precision. The challenge lies in minimizing this expense, in engineering a system that delivers both exceptional off-road performance and acceptable on-road manners. This requires a thorough understanding of suspension dynamics, a meticulous approach to installation, and a willingness to invest in quality components. The responsible off-road enthusiast recognizes that the journey extends beyond the trail, encompassing the entire spectrum of driving conditions. The story concludes not with a simple transformation but with a carefully considered evolution, a nuanced adaptation that respects the demands of both worlds.
4. Installation Complexity
The tale of a “1999 jeep cherokee long arm kit” is not complete without acknowledging the labor required to bring it to fruition. Installation complexity looms large in this narrative, a significant hurdle standing between aspiration and realization. The allure of enhanced off-road prowess often obscures the intricate process of integrating this system into the vehicle’s existing framework. This undertaking transcends simple bolt-on procedures, venturing into the realms of cutting, welding, and precise alignment. The factory setup, designed for ease of assembly on the production line, relinquishes its position to a more demanding configuration.
Consider a scenario where a novice, armed with enthusiasm but lacking specialized expertise, attempts to install a long arm kit in a driveway. The initial stages, involving the removal of existing control arms and mounting hardware, may proceed without incident. However, the subsequent steps, particularly the welding of new frame brackets and the precise alignment of the suspension, present formidable challenges. Improperly executed welds can compromise structural integrity, leading to catastrophic failure on the trail. Misaligned components can induce premature wear on tires and suspension components, negating the intended benefits of the upgrade. The task demands a thorough understanding of suspension geometry, proficiency in welding techniques, and access to specialized tools. In many cases, a professional installation is not merely a convenience but a necessity, ensuring the safety and longevity of the modification.
The narrative of “Installation Complexity” within the context of a “1999 jeep cherokee long arm kit” serves as a cautionary tale, reminding prospective modifiers that ambition must be tempered with realism. The pursuit of off-road performance should not overshadow the importance of proper execution. While the rewards of a well-executed long arm conversion are substantial, the risks associated with a poorly implemented installation are equally significant. The complexities inherent in the process demand a realistic assessment of one’s capabilities, a willingness to seek professional assistance when necessary, and an unwavering commitment to quality and precision. The story concludes not with a simple installation but with a carefully planned and meticulously executed transformation, ensuring both the safety and the enhanced capabilities of the vehicle.
5. Material Strength
The selection of a “1999 jeep cherokee long arm kit” initiates a silent dialogue with physics, a conversation conducted in the language of stress, strain, and sheer resilience. The material strength of the components dictates the boundaries of this conversation, defining the limits of the vehicle’s off-road exploits. Consider the forces exerted upon the suspension during articulation: the twisting, bending, and shearing stresses that accumulate as the vehicle traverses uneven terrain. The steel from which these arms are forged serves as the bulwark against these forces, the last line of defense against catastrophic failure. A kit constructed from inadequate materials is not merely a disappointment; it is a gamble with potential consequences ranging from inconvenient breakdowns to dangerous accidents. The composition of the steel, the quality of the welds, and the precision of the manufacturing process all contribute to the overall strength of the components. For instance, a control arm fabricated from low-grade steel may succumb to bending under extreme stress, compromising the vehicle’s handling and potentially leading to a loss of control. A poorly executed weld, a seemingly insignificant imperfection, can become a point of catastrophic failure, rendering the entire system useless.
Imagine a scenario in a remote location far from any kind of professional assistance. The vehicle is heavily loaded, and the terrain is particularly punishing. The control arms, crafted from high-strength alloy steel and meticulously welded by certified technicians, endure the relentless pounding. The driver proceeds with confidence, knowing that the suspension system is capable of withstanding the demands of the journey. Now, contrast that with a scenario where a similar vehicle, equipped with a long arm kit constructed from inferior materials, encounters the same challenges. The control arms begin to exhibit signs of bending and distortion. The welds, hastily executed and lacking proper penetration, begin to crack. The driver, sensing the imminent failure of the suspension, is forced to abort the trip, facing the daunting prospect of a long and arduous recovery. The choice of materials and the quality of workmanship directly influence the outcome of these scenarios, highlighting the profound impact of material strength on the overall reliability and safety of the vehicle. These are not theoretical possibilities, but documented occurrences that underscore the practical significance of understanding material properties when selecting such a kit.
In summary, the assessment of material strength becomes paramount in the selection of a “1999 jeep cherokee long arm kit.” It transcends mere specifications, becoming an evaluation of the vehicle’s potential, its ability to withstand the rigors of off-road driving, and the peace of mind afforded by knowing that the components are engineered to endure. The challenges associated with selecting a high-quality kit are significant, requiring careful research, scrutiny of manufacturing processes, and a willingness to invest in components that prioritize strength and durability. This investment is not merely an expenditure but a safeguard, protecting the vehicle, its occupants, and the overall driving experience. Ultimately, the understanding of material strength serves as a cornerstone of responsible modification, ensuring that the pursuit of off-road capability is tempered with a commitment to safety and reliability.
6. Bushings Quality
The narrative of a “1999 jeep cherokee long arm kit” extends beyond the visible strength of steel; it subtly intertwines with the seemingly insignificant components nestled within, the humble bushings. These unassuming elements, often overlooked in the grand scheme of suspension upgrades, silently dictate the character of the ride, the precision of the handling, and the longevity of the entire system. The bushings serve as the interface between the control arms and the vehicle’s frame, absorbing vibrations, mitigating noise, and allowing controlled movement. Their quality, or lack thereof, resonates through the vehicle, influencing every journey, every turn, every bump in the road.
Imagine a lifted Cherokee, proudly sporting its new long arm kit, navigating a winding mountain road. High-quality bushings, crafted from durable polyurethane or rubber compounds, diligently dampen the vibrations transmitted from the road surface, ensuring a smooth and controlled ride. The steering feels precise, the vehicle tracks accurately, and the driver maintains confidence in every maneuver. Now, contrast this with a similar scenario, where the long arm kit is equipped with inferior bushings, cheaply manufactured from low-grade materials. The ride becomes harsh and jarring, the vibrations resonate through the chassis, and the steering feels vague and unresponsive. The vehicle wanders aimlessly, requiring constant correction, and the driver struggles to maintain control. The difference lies not in the steel of the control arms but in the seemingly insignificant bushings that connect them to the frame. The story amplifies when considering off-road conditions: low-grade bushings can crack and disintegrate with extreme flex causing unwanted noise, vibrations, and loss of control. These are not hypothetical situations but real-world examples that underscore the crucial role of bushings in the performance and handling of a vehicle equipped with a long arm kit.
The importance of bushing quality cannot be understated within the context of a “1999 jeep cherokee long arm kit.” These small elements bear a large responsibility, influencing not only the comfort and handling of the vehicle but also the lifespan of the entire suspension system. Selecting a long arm kit equipped with high-quality bushings is not merely a matter of preference, but a commitment to long-term performance, reliability, and safety. The story serves as a reminder that even the smallest components can have a profound impact, transforming a potentially transformative upgrade into a disappointing compromise. The choice is not simply a matter of selecting a long arm kit but choosing an upgrade that delivers both off-road capability and on-road refinement, a balance achieved through attention to every detail, including the often-overlooked quality of the bushings. The narrative concludes with the awareness that a well-engineered long arm system is the cumulative result of its constituent parts, not just the strength of the steel, but the quality of every bushing, every weld, and every connection.
7. Compatibility with Lift
The saga of the “1999 jeep cherokee long arm kit” often begins not with the arms themselves, but with a prior modification: the lift. Its a story of elevation, a desire to enhance ground clearance and accommodate larger tires. The lift, however, is merely the opening chapter; the long arm kit represents the necessary sequel, addressing the altered geometry and unforeseen consequences that arise from raising the vehicle’s ride height. The compatibility between these two elements is not an optional consideration but a fundamental prerequisite, a critical alignment that determines the success or failure of the entire modification.
Picture a scenario: a Cherokee, lifted several inches, its factory control arms straining under the altered angles. The suspension binds, the ride becomes harsh, and the handling suffers. The installation of a long arm kit, specifically designed for that lift height, remedies the situation. The extended arms restore the proper geometry, allowing the suspension to function smoothly and predictably. Now, contrast this with another scenario: a similar Cherokee, also lifted, but paired with a long arm kit that is incompatible with the lift height. The arms may be too short, limiting articulation and causing premature wear on the joints. Or, they may be too long, altering the caster angle and inducing dangerous handling characteristics. The incompatibility between the lift and the long arm kit creates a cascade of problems, negating the intended benefits and potentially compromising safety. Several companies provide lift kits and long arm kits as matched set or have documented which kit is compatible with which lift height. Ignoring this information can lead to damage or handling issues.
The compatibility between a “1999 jeep cherokee long arm kit” and the existing lift is the concluding point in this specific narrative, the point that determines the efficacy of the change. It transcends the mere consideration of dimensions and specifications, becoming a holistic assessment of the entire suspension system. The potential installer needs to review details about lift height and control arm length. This is an essential element that will help ensure the smooth integration between the long arm and the lift height. The story serves as a call to proper planning and execution, it reinforces the essence of a fully thought out install. The choice is not simply a matter of selecting a long arm kit, but ensuring that it integrates seamlessly with the lift and a harmonious result is achieved.
8. Weld Integrity
The narrative surrounding a “1999 jeep cherokee long arm kit” often highlights enhanced off-road performance and improved suspension articulation. Yet, underpinning these benefits lies a critical, often unseen factor: weld integrity. Each weld point on these aftermarket components represents a potential failure point, a vulnerability that can compromise the entire system. These welds are not mere cosmetic additions; they are the structural sinews that bind the various components together, ensuring that the suspension can withstand the relentless forces encountered during off-road excursions. A poorly executed weld, characterized by inadequate penetration or porosity, becomes a stress concentrator, a weak link in the chain. A scenario could involve a driver confidently navigating a rocky trail, only to experience a sudden and catastrophic failure of a control arm due to a compromised weld. The result could be a loss of control, potential damage to the vehicle, and even injury to the occupants. The steel itself may be of the highest grade, the design impeccable, but without proper weld integrity, the entire system becomes vulnerable.
Consider the manufacturing process. A skilled welder, employing proper techniques and adhering to stringent quality control measures, creates welds that are not only aesthetically pleasing but also structurally sound. Each weld undergoes rigorous inspection, ensuring that it meets the required specifications for penetration, fusion, and absence of defects. This meticulous attention to detail translates into a long arm kit that can withstand the harshest conditions, providing the driver with confidence and peace of mind. Conversely, a poorly executed weld, often the result of inadequate training, substandard equipment, or a disregard for quality control, introduces a significant element of risk. Such welds may appear outwardly sound but harbor hidden flaws that can lead to premature failure. The impact of such defects can be further compounded by the dynamic forces encountered during off-road driving, accelerating the rate of crack propagation and ultimately leading to catastrophic structural failure. Several incidents have involved poorly fabricated aftermarket kits that didn’t hold up to the stress of off-roading, causing damage to the vehicle and stranding the driver.
In summation, the understanding and prioritization of weld integrity is key when considering a “1999 jeep cherokee long arm kit”. It is the underlying key factor to a long lasting system that balances off-road capability with structural integrity and durability. The pursuit of off-road enhancements should be accompanied by a commitment to quality craftsmanship, ensuring that the welds meet the highest standards of safety and performance. The story concludes not with just the addition of a new part, but the beginning of new capabilities.
Frequently Asked Questions
The realm of aftermarket modifications often breeds inquiry, particularly when considering significant alterations such as a long arm conversion for a 1999 Jeep Cherokee. These questions seek to clarify common points of confusion and provide insights into the practical implications of such a modification.
Question 1: Does a long arm kit inherently compromise on-road handling?
The assumption that off-road enhancements invariably sacrifice on-road drivability is a common misconception. A properly engineered and installed long arm kit, when paired with appropriate shocks and careful alignment, can maintain acceptable on-road handling characteristics. However, the experience will likely differ from the factory settings. The vehicle owner must manage expectations and recognize some alterations in vehicle driving dynamics.
Question 2: Is welding required for all long arm kit installations?
The necessity of welding varies depending on the specific kit design. Some kits offer bolt-on solutions, while others require welding to secure frame-side brackets. Welding requirements increase the complexity of installation and necessitate specialized skills or professional assistance. Ignoring welding requirements presents grave safety issues. Verify installation steps and requirements prior to purchase.
Question 3: Will any long arm kit fit any lift height?
No. The correct answer is that kits are specifically designed for particular lift height. Installing the wrong kit will cause poor handling, and potential damage to suspension components, and dangerous operation. It is critical to find a set with the right specifications or risk component damage or vehicle issues.
Question 4: What is the expected lifespan of a long arm kit?
The lifespan hinges on a number of factors, including the quality of materials, the integrity of welds, the severity of use, and the diligence of maintenance. A well-maintained kit, constructed from high-quality materials and subjected to moderate use, can provide years of reliable service. Conversely, a poorly constructed kit, subjected to extreme conditions and neglected maintenance, may exhibit premature wear or even catastrophic failure. Some people have reported kit failures in harsh terrain after a few years, others have reported that the kit lasted for decades. Be mindful of the application use.
Question 5: Can a long arm kit correct driveline vibrations resulting from a lift?
A long arm kit can assist in mitigating driveline vibrations by optimizing the control arm angle; however, it may not eliminate the vibrations entirely. Additional measures, such as transfer case drops or slip yoke eliminators, may be necessary to fully address driveline issues resulting from a lift.
Question 6: Are all long arm kits created equal?
The assertion that all kits are alike is a fallacy. Significant variations exist in material quality, weld integrity, design sophistication, and overall craftsmanship. Selecting a reputable manufacturer and scrutinizing specifications are crucial for ensuring optimal performance and longevity.
The pursuit of enhanced off-road capability through a long arm conversion requires careful consideration, informed decision-making, and a realistic understanding of the potential trade-offs. The knowledge to make proper choices will come from research and education. The installation requirements need to be analyzed and reviewed.
The forthcoming sections will delve deeper into specific aspects of long arm kit selection, installation, and maintenance, providing a more comprehensive guide for those seeking to modify their 1999 Jeep Cherokee.
Essential Considerations for a 1999 Jeep Cherokee Long Arm Kit
Embarking on the path of modifying a 1999 Jeep Cherokee with a long arm suspension represents a commitmenta dedication to enhanced off-road prowess. The allure of increased articulation and formidable obstacle clearance must be tempered with pragmatic considerations. These tips are not mere suggestions; they are lessons forged in the trials and tribulations of seasoned Jeep enthusiasts.
Tip 1: Rigorous Inspection of Welds: Before installation commences, scrutinize every weld point. A compromised weld is a ticking time bomb, a harbinger of potential failure on the trail. Look for uniform bead patterns, absence of porosity, and adequate penetration. If doubt lingers, seek the counsel of a certified welder. A small investment in expert assessment can avert catastrophic consequences.
Tip 2: Meticulous Measurement and Alignment: The pursuit of precision is paramount. Improper alignment can negate the benefits of the long arm kit and induce premature wear on tires and suspension components. Utilize a high-quality angle finder and laser level to ensure accurate installation. Double-check all measurements before tightening bolts. The difference between success and failure often lies within a fraction of an inch.
Tip 3: Bushing Material Selection: The choice between polyurethane and rubber bushings is not trivial. Polyurethane offers superior durability and resistance to deformation but transmits more vibration. Rubber provides a more compliant ride but may degrade more quickly. Carefully weigh the trade-offs based on your driving style and terrain. Opting for high-quality bushings from a reputable manufacturer is a worthwhile investment.
Tip 4: Driveline Angle Management: A lifted Cherokee necessitates careful attention to driveline angles. Excessive angles induce vibrations, accelerate U-joint wear, and potentially lead to catastrophic failure. Consider installing a transfer case drop or a slip yoke eliminator to mitigate these issues. Regular inspection of U-joints is essential for detecting early signs of wear.
Tip 5: Comprehensive Compatibility Assessment: Ensure seamless integration of the long arm kit with the existing lift and other aftermarket components. Verify that the control arm length corresponds to the lift height. Incompatible components can lead to binding, restricted articulation, and compromised handling. Thoroughly research compatibility charts and seek expert advice when necessary. The sum is only as great as its parts.
Tip 6: Proper Torque Specifications: Adherence to torque specifications is not merely a recommendation; it is a mandate. Over-tightening can damage bolts and mounting points, while under-tightening can lead to component loosening and potential failure. Utilize a calibrated torque wrench and consult the manufacturer’s specifications for precise torque values. Double-check all fasteners after the initial shakedown run.
These tenets represent the bedrock of a successful long arm conversion. They are not mere guidelines but lessons from the school of experience. Heed these warnings and make your journey of modification a success.
With these considerations firmly in mind, the article will next move towards a conclusion.
1999 Jeep Cherokee Long Arm Kit
The preceding exploration sought to illuminate the multifaceted nature of the “1999 jeep cherokee long arm kit.” It delved into the intended benefits increased articulation, improved driveline angles while also acknowledging the potential pitfalls compromised on-road handling, installation complexities. The narratives presented aimed to provide clarity, transforming a seemingly straightforward modification into a landscape of considerations.
The decision to embark on this modification journey rests solely with the individual. The stories shared serve as a reminder that true enhancement lies not merely in the acquisition of parts, but in the commitment to understanding their implications. Now, with a compass of knowledge and a map of potential challenges, a prudent path towards transforming the Cherokee’s capabilities can be taken.
