Fits 2007-2018 Jeep Wrangler JK and JK Unlimited models.

The JKS Manufacturing J-Kontrol Box Kit is engineered to improve the ride quality and handling of lifted Jeep Wranglers by correcting front control arm geometry. When a Jeep is lifted, the control arm angles become steeper, which causes road impacts to be transmitted directly into the chassis rather than being absorbed by the suspension. These heavy-duty brackets lower the mounting points of both the upper and lower control arms, returning them to a more horizontal orientation.

This geometry correction improves anti-dive characteristics during braking and helps restore essential caster settings to improve steering feel and tracking. Constructed from laser-cut, CNC-formed steel, these boxes are built for long-term durability on and off the trail. They bolt directly into the factory control arm locations and are compatible with most 2-inch to 4.5-inch suspension systems.

• Realigns front control arms for improved suspension compliance
• Reduces road harshness and improves steering stability
• Corrects caster settings on lifted vehicles
• Heavy-duty laser-cut steel construction
• Includes all necessary grade 8 installation hardware

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-Door models equipped with the Diesel engine.

The JKS J-Kontrol 2.5-inch suspension system is a comprehensive bolt-on solution designed to increase ground clearance while significantly improving the handling and stability of Diesel-powered Jeep Wrangler JL models. Moving beyond the J-Venture series, the J-Kontrol system includes front control arm correction brackets. These brackets flatten the upper and lower control arm angles to correct caster and restore factory-like steering feel on lifted geometry.

This kit features Diesel-specific JSPEC dual-rate coil springs designed to maintain a level stance and consistent ride quality under the weight of the diesel engine. Paired with custom-valved aluminum FOX 2.0 Adventure Series gas shocks, the system provides exceptional damping across varying terrain. To ensure the axles remain centered, the kit includes a front adjustable track bar and a heavy-duty rear track bar bracket.

• 2.5-inch lift height specifically tuned for the weight of 4-door Diesel models
• FOX 2.0 Adventure Series aluminum body gas shocks for improved heat dissipation and damping
• Front control arm correction brackets to optimize suspension geometry and caster
• JSPEC dual-rate coil springs for a smooth ride and increased load capacity
• Front adjustable track bar and rear track bar bracket to correct axle positioning
• Quicker-Disconnect front sway bar links for increased off-road articulation
• Front and rear bump stop extensions to properly limit suspension up-travel

Fits 2020-2025 Jeep Gladiator JT 4WD (Sport, Rubicon, Overland, Willys, and select submodels).

The JKS J-Kontrol suspension system provides 3 to 3.5 inches of lift, engineered to increase ground clearance while significantly improving the handling and ride quality of your Jeep Gladiator. Building on the J-Venture series, the J-Kontrol system includes front control arm correction brackets. These brackets flatten the upper and lower control arm angles to restore factory-spec caster, resulting in more stable steering and reduced brake dive for a better daily driving experience.

Each kit features JSPEC dual-rate coil springs designed for consistent performance across varied terrain and Fox 2.0 Performance Series shocks specifically valved for this JT-specific application. To ensure proper axle centering and suspension geometry, the system includes a heavy-duty adjustable front track bar and a rear track bar bracket. For increased off-road articulation, JKS Quicker-Disconnect sway bar links are provided, allowing you to easily unpin the front sway bar for maximum travel on the trails.

• Front/Rear FOX 2.0 Performance Series Shocks for improved damping control on and off-road
• Front Control Arm Correction Brackets to restore caster and improve handling geometry
• JSPEC HD Dual-Rate Coil Springs for superior ride quality and increased load capacity
• Front Adjustable Track Bar and Rear Track Bar Bracket for precise axle alignment under the chassis
• Front Quicker Disconnects and Rear Sway Bar Links for increased articulation
• Front and Rear Bump Stop Extensions to properly limit suspension up-travel

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-Door models equipped with the Diesel engine. This J-Kontrol suspension system provides 3.5 inches of lift while prioritizing handling precision and roll stability.

The J-Kontrol system is engineered for Jeep owners who demand better road manners without sacrificing off-road capability. Unlike basic lift kits, J-Kontrol includes front control arm correction brackets. These brackets flatten the upper and lower control arm angles to correct caster and eliminate the "flighty" steering feel often associated with lifted vehicles, all while utilizing the factory control arms. The kit is anchored by JSPEC dual-rate coil springs specifically tuned for the weight of the Diesel engine, paired with custom-valved FOX 2.0 Performance Series aluminum-body gas shocks for superior heat dissipation and damping.

• 3.5-inch lift height engineered for Diesel 4-door platforms
• FOX 2.0 Performance Series gas shocks with vehicle-specific valving
• JSPEC dual-rate coil springs for consistent ride quality on varied terrain
• Front control arm correction brackets to optimize caster and geometry
• Front adjustable track bar and rear track bar bracket for precise axle centering
• Quicker-Disconnect front sway bar links for maximum off-road articulation
• Front and rear bump stop extensions to protect suspension components at full compression
• Heavy-duty rear sway bar links and all necessary hardware included

Fits 2020-2025 Jeep Gladiator JT 4WD models (including Rubicon, Sport, Willys, and Overland).

The JKS Manufacturing J-Kontrol suspension lift system provides a comprehensive 3-3.5 inch lift while prioritizing geometry correction and ride quality. Building upon the J-Venture series, this J-Kontrol system adds heavy-duty front control arm correction brackets. These brackets flatten the upper and lower control arm angles to correct caster and restore factory-like handling, making this kit an exceptional choice for daily driving, beach use, and technical trail riding.

Equipped with FOX 2.5 Performance Elite Series shocks, this system is specifically valved to complement the included JSPEC dual-rate coil springs. This combination ensures a smooth ride over highway imperfections while providing the damping required for aggressive off-road articulation. The kit further corrects axle positioning with an adjustable front track bar and a rear track bar bracket, while JKS Quicker-Disconnect sway bar links allow for immediate flexibility on the trail.

• 3-3.5 inch lift height for improved ground clearance and tire clearance
• FOX 2.5 Performance Elite Series shocks tuned specifically for the Gladiator JT suspension
• Front control arm correction brackets optimize caster and improve handling stability
• JSPEC heavy-duty dual-rate coil springs designed for consistent ride quality across all terrain
• Front adjustable track bar and rear track bar bracket for precise axle centering
• JKS Quicker-Disconnect front sway bar links and rear links for increased off-road articulation
• Front and rear bump stop extensions to safely limit suspension up-travel

Fits 2021-2025 Jeep Wrangler JL 4xe 4-door models including Rubicon, Sahara, Sport S, Willys, and High Altitude.

The JKS J-Venture 2-inch suspension system is engineered specifically for the plug-in hybrid Wrangler 4xe, providing the ground clearance needed for larger tires while maintaining exceptional on-road handling. This bolt-on system features JSPEC dual-rate coil springs tuned for the unique weight distribution of the 4xe platform. To maximize trail performance, the kit includes JKS Quicker Disconnects, allowing for rapid front sway bar release to increase wheel travel and articulation.

Drivetrain geometry is maintained with a heavy-duty front adjustable track bar and a rear track bar relocation bracket, ensuring both axles remain centered. Alignment is addressed via front caster cam locks to restore factory steering feel. This kit is paired with Fox 2.0 Adventure Series IFP shocks, utilizing internal floating piston technology for consistent, fade-free damping across varying terrain.

• JSPEC dual-rate front and rear coil springs
• FOX 2.0 Adventure Series IFP shocks
• JKS MFG front sway bar Quicker disconnects
• JKS MFG front adjustable track bar
• Rear track bar relocation bracket
• Front and rear bump stop extensions
• Rear extended sway bar links
• Front caster cam locks for alignment correction

Fits 2007-2018 Jeep Wrangler JK (2-Door and 4-Door models).

The JKS Manufacturing Suspension Box Kit provides the essential components required to correctly lift and level your Jeep Wrangler JK. Engineered for both 2.5-inch and 3.5-inch lift heights, this kit focuses on maintaining proper suspension geometry and axle alignment after increasing ground clearance. Whether you are building an overlander or a technical rock crawler, these components ensure your JK retains predictable handling characteristics and OE-style ride quality while clearing larger tire packages.

• Designed for 2.5" and 3.5" lift heights
• Compatible with 2007-2018 Jeep Wrangler JK models
• Includes necessary brackets and high-strength hardware
• Maintains critical suspension geometry and axle centering
• Heavy-duty construction for off-road durability

Fits 2020-2022 Jeep Wrangler Unlimited (4-Door) models equipped with the Diesel engine. This J-Kontrol suspension system provides a 2.5-inch lift while significantly improving handling and stability both on and off-road.

Building on the J-Venture platform, the J-Kontrol system is a comprehensive bolt-on solution that focuses on suspension geometry. The included front control arm correction brackets flatten upper and lower control arm angles to restore factory caster, resulting in more predictable steering and reduced nose-dive during braking. The kit features Diesel-specific JSPEC dual-rate coil springs designed to manage the additional weight of the diesel powertrain while providing a compliant ride across varied terrain. Custom-valved FOX 2.0 Performance Series gas shocks provide superior damping for aggressive trail use without sacrificing highway comfort.

• Diesel-specific JSPEC dual-rate coil springs for optimized ride height and load carrying
• FOX 2.0 Performance Series gas shocks with custom valving for improved articulation and control
• Front control arm correction brackets to restore caster and improve steering geometry
• Front adjustable track bar and rear track bar bracket to re-center axles and maintain roll center
• Quicker-Disconnect front sway bar links for maximum off-road articulation
• Front and rear bump stop extensions to prevent over-compression and protect components
• Complete bolt-on installation using factory mounting points

Fits 2021-2025 Jeep Wrangler JL 4-door 4xe models (Rubicon, Sahara, Willys, Sport S, and High Altitude).

The JKS J-Venture 2-inch suspension system is specifically engineered for the unique weight distribution and performance requirements of the plug-in hybrid Jeep Wrangler 4xe. This bolt-on kit provides increased ground clearance and tire clearance while maintaining precise on-road handling. The foundation of the system is a set of JSPEC dual-rate coil springs, which are tuned to offer a compliant ride on pavement and predictable support when the suspension cycles off-road.

To maintain proper axle alignment and steering geometry, the J-Venture kit includes a front adjustable track bar and a rear track bar bracket. For improved trail articulation, the kit features JKS Quicker Disconnects, allowing you to easily uncouple the front sway bar. Alignment is further optimized with front caster cam locks to restore factory-spec handling characteristics after lifting. This comprehensive kit comes ready for installation with your choice of JSPEC custom-valved shocks or FOX 2.0 Performance Series IFP shocks.

• JSPEC dual-rate front and rear coil springs (available in standard or HD)
• JKS MFG front adjustable track bar and rear track bar bracket
• JKS MFG front sway bar Quicker Disconnects
• Front and rear bump stop extensions
• Front caster cam locks for alignment correction
• Rear extended sway bar links
• Choice of JSPEC Custom Valved Gas Shocks or FOX 2.0 Performance IFP Shocks

Fits select 2020-2022 Jeep Wrangler Unlimited (4-Door) models equipped with the Diesel engine. This system is engineered to handle aggressive off-road terrain like rocks and ruts while maintaining excellent on-road handling and geometry.

The JKS J-Konnect system improves suspension strength and alignment by replacing weak factory components with heavy-duty alternatives. The included J-Link front and rear fixed-length lower control arms are constructed from 2in x .250-wall DOM tubing, providing increased front caster and rear wheelbase correction. These arms utilize large factory-style rubber bushings for superior NVH (noise, vibration, and harshness) isolation. To ensure precise steering, the kit includes a drag link flip kit that restores factory steering angles alongside a front adjustable track bar and rear track bar bracket for perfect axle centering.

• Front and rear custom-valved FOX 2.0 Performance Series monotube gas shocks
• Front and rear dual-rate coil springs for consistent ride quality across all terrains
• J-Link lower control arms (2in x .250-wall DOM) for strength and caster correction
• Front Sway Bar Quicker Disconnects and rear sway bar links for maximum articulation
• Front adjustable track bar and rear track bar bracket to correct axle positioning
• Drag link flip kit to maintain optimal steering geometry
• Front and rear bump stop extensions to properly limit upward suspension travel

Fits 2018-2025 Jeep Wrangler JL 2-Door models including Rubicon, Sport, Sport S, and Willys. This JKS J-Konnect suspension system is designed for Jeep owners who require a balance of precise on-road handling and high-clearance off-road performance. Building on the J-Venture foundation, the J-Konnect system adds J-Link lower control arms to correct front caster and rear wheelbase while providing a significant strength upgrade over factory stamped steel components.

The included J-Link control arms are constructed from 2” x .250-wall DOM tubing and utilize large factory-style rubber bushings to maintain excellent NVH (noise, vibration, and harshness) isolation. Ride quality is managed by JKS dual-rate coil springs and FOX 2.0 Adventure Series shocks, which feature vehicle-specific valving for controlled damping across varying terrain. To maintain proper axle alignment and suspension travel, the kit includes an adjustable front track bar, a rear track bar bracket, and bump stop extensions.

• 3-inch lift height for increased ground clearance and larger tire fitment
• FOX 2.0 Adventure Series shocks with IFP (Internal Floating Piston) technology
• J-Link lower control arms (2” x .250-wall DOM) for caster correction and durability
• Front adjustable track bar and rear relocation bracket for precise axle centering
• Sway bar quicker disconnects for maximum off-road articulation
• Dual-rate coil springs optimized for 2-door weight distribution and ride quality
• Includes front/rear bump stop extensions and all necessary installation hardware

Fits select 2018-2025 Jeep Wrangler JL 2-Door models, including Rubicon, Sport, Sport S, Willys, and Islander. This system is specifically engineered for 2-door models requiring additional load-carrying capacity for heavy accessories like winch bumpers, full-size spares, and roof racks.

The JKS J-Konnect system improves off-road performance and suspension geometry by replacing weak factory components with heavy-duty alternatives. The kit centers on J-Link lower control arms, constructed from 2-inch x .250-wall DOM tubing. These fixed-length arms correct front caster and rear wheelbase while utilizing large factory-style rubber bushings to maintain street-friendly NVH isolation. For damping, this kit includes FOX 2.0 IFP Adventure Series monotube gas shocks, custom-valved to work in harmony with the JKS dual-rate coil springs for controlled articulation on the trail and a stable ride on the pavement.

Axle positioning is managed by a front adjustable track bar and a rear track bar bracket, ensuring the suspension remains centered under the vehicle throughout its travel. The package is completed with Quicker Disconnect sway bar links for maximum articulation and bump stop extensions to protect your shocks and fenders from over-travel.

• 3-inch lift height tailored for 2-door JL geometry
• FOX 2.0 Adventure Series IFP shocks with aluminum bodies for heat dissipation
• HD dual-rate coil springs for increased load capacity and consistent ride height
• J-Link lower control arms made from 2" x .250-wall DOM tubing
• Front adjustable track bar and rear track bar relocation bracket
• Quicker Disconnect front sway bar links and extended rear links
• Front and rear bump stop extensions included

Fits select 2018-2025 Jeep Wrangler JL 4-Door (including Unlimited, Sahara, Rubicon, and Sport).

The JKS J-Kontrol 3.5-inch suspension system is engineered to provide superior stability and handling for daily-driven Jeep Wrangler JLs that require serious off-road capability. This system builds on the J-Venture platform by adding front control arm correction brackets, which flatten the control arm angles to mimic factory geometry. This correction restores caster for improved steering feel and significantly reduced brake dive.

Each kit features heavy-duty dual-rate coil springs and specifically valved FOX 2.0 Performance Series IFP gas shocks to ensure a controlled ride over diverse terrain. To maintain proper axle alignment and maximize articulation, the system includes an adjustable front track bar and Quicker Disconnect sway bar links.

• 3.5-inch lift height tailored for Jeep Wrangler JL 4-Door models
• FOX 2.0 Performance Series gas shocks specifically valved for this application
• Front control arm correction brackets to restore caster and improve geometry
• HD dual-rate coil springs designed for consistent ride quality across any terrain
• Front adjustable track bar and rear track bar bracket for precise axle centering
• Front sway bar Quicker Disconnects and rear sway bar links for increased articulation
• Includes front and rear bump stop extensions to properly limit suspension travel

Fits select 2018-2025 Jeep Wrangler JL 4-Door models including Unlimited Rubicon, Sahara, Sport, Willys, and High Altitude.

The JKS J-Kontrol 3.5" suspension system is engineered for Jeep owners who demand a balance between daily-driver stability and technical trail capability. Building on the J-Venture platform, the J-Kontrol system adds front control arm correction brackets. These brackets relocate the frame-side mounting points to flatten the upper and lower control arm angles, restoring factory-style geometry and correcting caster for significantly improved steering feel and reduced brake dive.

Damping is handled by Fox 2.0 Adventure Series gas shocks, specifically valved for this suspension system. Combined with JKS heavy-duty dual-rate coil springs, this kit provides a predictable, compliant ride on pavement while maintaining the travel and bottom-out resistance required for off-road obstacles. To ensure proper axle alignment, the kit includes a front adjustable track bar and a rear track bar relocation bracket.

• Fox 2.0 Adventure Series Shocks: Custom-valved gas shocks for superior damping performance on diverse terrain.
• HD Dual Rate Coil Springs: Designed for excellent ride quality and consistent handling under load.
• Control Arm Correction Brackets: Flattens control arm angles to correct caster and optimize suspension geometry.
• Front Adjustable Track Bar: Forged track bar allows for precise centering of the front axle.
• Quicker Disconnects: Front sway bar disconnects and rear links provide increased off-road articulation.
• Bump Stop Extensions: Front and rear extensions properly limit up-travel to protect suspension components.

Includes: Front/rear dual-rate coils, Fox 2.0 shocks, control arm correction brackets, adjustable front track bar, rear track bar bracket, front quicker disconnects, rear sway bar links, and bump stop extensions.

Fits select 2020-2023 Jeep Wrangler JL 4-Door Unlimited models (Diesel).

The JKS J-Konnect system is a bolt-on performance suspension solution engineered to handle technical off-road trails while maintaining refined on-road manners. Building upon the J-Venture platform, this system adds front and rear J-Link lower control arms to optimize front caster and rear wheelbase. These arms are constructed from heavy-duty 2-inch x .250-wall DOM tubing and utilize large factory-style rubber bushings to ensure superior strength and NVH (Noise, Vibration, Harshness) isolation compared to factory components.

Ride quality is managed by dual-rate coil springs and custom-valved FOX 2.0 IFP Adventure Series shocks, providing a predictable feel across varied terrain. The kit also includes a front adjustable track bar and a rear track bar bracket to properly center the axles, alongside Quicker Disconnects to maximize articulation when the pavement ends.

• Front and rear FOX 2.0 Adventure Series IFP shocks custom-valved for the Diesel JL
• J-Link front and rear lower control arms made from 2-inch x .250-wall DOM tubing
• Front and rear dual-rate coil springs for improved load handling and ride quality
• Front adjustable track bar and rear track bar bracket for precise axle alignment
• Front sway bar Quicker Disconnects and rear sway bar links
• Front and rear bump stop extensions to protect suspension components at full compression

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-door models equipped with the Diesel engine. This J-Kontrol suspension system provides a 3.5-inch lift while significantly improving handling, caster, and axle positioning for superior on-road stability and trail performance.

The J-Kontrol system is a comprehensive upgrade over the J-Venture series, specifically engineered to address the geometry changes associated with higher lift heights. The kit includes heavy-duty front control arm correction brackets that flatten the upper and lower control arm angles. This design corrects caster and restores factory-like steering feel, which is often lost during suspension modification. For the heavier Diesel powertrain, JKS utilizes JSPEC dual-rate coil springs specifically tuned to provide a controlled ride and maintain proper ride height under load.

To manage damping, the kit features custom-valved FOX 2.0 Adventure Series gas shocks. These 2.0-inch IFP (Internal Floating Piston) shocks are paired with a front adjustable track bar and a rear track bar bracket to ensure both axles are perfectly centered under the chassis. Quicker-Disconnect sway bar end links are included to provide maximum articulation when the pavement ends.

• Front and rear FOX 2.0 Adventure Series gas shocks for precise damping control
• JSPEC front and rear dual-rate coil springs tuned for Diesel engine weight
• Front control arm correction brackets for improved caster and steering geometry
• Front adjustable track bar and rear track bar bracket for perfect axle alignment
• Quicker-Disconnect front sway bar links for increased off-road travel
• Front and rear bump stop extensions to protect against over-compression
• Complete bolt-on installation using factory mounting points

Fits select 2018-2025 Jeep Wrangler JL 2-Door models including Rubicon, Sport, and Willys. This JKS J-Konnect 3-inch suspension system is engineered for drivers who demand aggressive trail performance without sacrificing daily driveability. The J-Konnect system optimizes suspension geometry and component strength by replacing factory components with heavy-duty alternatives designed to handle the stresses of rocks and ruts.

Central to this kit are the J-Link front and rear lower control arms, constructed from 2" x .250-wall DOM tubing. These fixed-length arms are significantly stronger than OE units and are preset to correct front caster and rear wheelbase on a 3-inch lift. They utilize large factory-style rubber bushings at both ends for superior NVH (noise, vibration, and harshness) isolation. Performance is further enhanced by custom-valved FOX 2.0 IFP Performance Series monotube gas shocks and HD dual-rate coil springs, which provide additional load capacity for Jeeps equipped with heavy winch bumpers, roof racks, or full-size spares.

• Front/Rear FOX 2.0 Performance Series IFP shocks specifically valved for the JL platform
• HD dual-rate coil springs designed for consistent ride height and increased load capacity
• Front and rear J-Link lower control arms made from 2" x .250-wall DOM tubing
• Front adjustable track bar and rear track bar bracket for precise axle centering
• Quicker Disconnect front sway bar links for maximum off-road articulation
• Front and rear bump stop extensions to prevent over-compression and protect fenders
• Retains factory-like street manners with high-quality rubber bushings

Fits 2020-2023 Jeep Wrangler JL 4-Door Unlimited models equipped with the Diesel engine.

The JKS J-Konnect system is engineered to bridge the gap between street-friendly handling and rugged off-road performance. Building on the foundation of the J-Venture series, the J-Konnect adds heavy-duty J-Link front and rear fixed-length lower control arms. These arms are constructed from 2-inch x .250-wall DOM tubing, providing a massive strength upgrade over factory components while correcting front caster and rear wheelbase for improved geometry. Large, factory-style rubber bushings ensure excellent NVH (Noise, Vibration, and Harshness) isolation for comfortable highway cruising.

This comprehensive system includes dual-rate coil springs paired with custom-valved FOX 2.0 IFP Performance Series shocks, specifically tuned to manage the weight and dynamics of the Diesel JL. A front adjustable track bar and rear track bar bracket maintain proper axle alignment, while sway bar quicker disconnects allow for maximum articulation on the trail.

• Front and rear FOX 2.0 Performance Series IFP shocks for superior damping control
• J-Link lower control arms (2" x .250-wall DOM) for increased strength and corrected caster
• Front and rear dual-rate coil springs designed for consistent ride quality
• Front adjustable track bar and rear track bar bracket for precise axle centering
• Front sway bar quicker disconnects and rear sway bar links for increased articulation
• Front and rear bump stop extensions to safely manage suspension travel

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-door models equipped with the Diesel engine.

The JKS J-Venture 2.5-inch suspension system is a complete bolt-on solution designed to increase ground clearance and off-road articulation while maintaining refined on-road handling. This system utilizes JSPEC dual-rate coil springs specifically tuned for the weight of the Diesel JL to provide a consistent ride across various terrains. The included FOX 2.0 IFP Adventure Series monotube gas shocks feature custom valving for precise compression and rebound response.

To maintain proper suspension geometry and axle centering, the kit includes a front adjustable track bar and a rear track bar bracket. For increased wheel travel on the trail, JKS Quicker Disconnects are provided for the front sway bar, along with front and rear bump stop extensions to safely limit up-travel. Front caster cam locks are included to correct alignment after the lift is installed.

• Front and rear FOX 2.0 Adventure Series IFP shocks
• JSPEC dual-rate coil springs for Diesel-specific loading
• Front adjustable track bar and rear track bar bracket for axle centering
• JKS front sway bar Quicker Disconnects and brake line brackets
• Front and rear bump stop extensions
• Front caster cam locks for alignment correction
• Direct bolt-on installation

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-Door models equipped with the Diesel engine.

The JKS J-Konnect 2.5-inch suspension system is engineered to bridge the gap between basic lift kits and high-clearance long-arm systems. Designed specifically for the weight and torque of the Diesel Wrangler JL, this kit improves suspension geometry and component strength to handle aggressive terrain without compromising street manners. The system features J-Link lower control arms constructed from 2-inch x .250-wall DOM tubing, providing significantly more strength than factory stamped steel arms while correcting front caster and rear wheelbase.

Ride quality is managed by JKS dual-rate coil springs paired with custom-valved FOX 2.0 Adventure Series monotube gas shocks, ensuring a controlled, comfortable ride over washboards and technical obstacles. To maintain steering precision and axle alignment, the J-Konnect includes a front adjustable track bar and a drag link flip kit that flattens steering angles to mimic factory geometry.

• FOX 2.0 Adventure Series Shocks: Monotube gas shocks specifically valved for this Diesel-specific suspension system.
• J-Link Lower Control Arms: Fixed-length 2" x .250-wall DOM tubing with factory-style rubber bushings for NVH isolation.
• Dual-Rate Coil Springs: Engineered for linear handling on-road and progressive support during off-road articulation.
• Adjustable Track Bar: Heavy-duty front track bar to correctly center the axle under the vehicle.
• Quicker Disconnects: Front sway bar disconnects for maximum wheel travel and rear links for stability.
• Steering Correction: Drag link flip kit and track bar braces included to optimize geometry and protect components.
• Bump Stop Extensions: Front and rear extensions included to properly limit up-travel and protect fenders.

Fits select 2018-2025 Jeep Wrangler JL 4-Door models.

The JKS J-Kontrol 3.5-inch suspension system is a comprehensive upgrade designed for Jeep owners who demand superior handling and stability both on and off the pavement. A significant step up from standard lift kits, the J-Kontrol system centers around front control arm correction brackets. These brackets relocate the factory control arms to flatten their operating angle, which restores proper caster and significantly improves steering feel and ride quality at height.

To deliver a premium ride, this kit includes JSPEC dual-rate coil springs engineered for standard weight loads and custom-valved FOX 2.0 Performance Series gas shocks. The shocks' aluminum bodies dissipate heat quickly for fade-free damping during extended trail use. The system also addresses axle positioning with a front adjustable track bar and a rear track bar bracket, ensuring your axles remain centered under the vehicle throughout the suspension cycle.

• 3.5-inch lift height for increased ground clearance and larger tire fitment
• Front Control Arm Correction Brackets optimize caster and improve steering geometry
• Custom-valved FOX 2.0 Performance Series IFP aluminum body gas shocks
• JSPEC Dual-Rate Standard Rate coil springs provide a predictable, smooth ride
• Front adjustable track bar and rear track bar bracket for precise axle centering
• JKS Quicker-Disconnects and rear sway bar links for increased off-road articulation
• Includes front and rear bump stop extensions to properly limit up-travel

Fits 2020-2022 Jeep Wrangler JL Unlimited 4-Door models equipped with the Diesel engine.

The JKS J-Venture 2.5-inch suspension system is engineered to increase ground clearance and off-road performance while maintaining exceptional street manners. This complete bolt-on system replaces factory components with precision-tuned JSPEC dual-rate coil springs and custom-valved FOX 2.0 IFP Performance Series monotube gas shocks, delivering quick compression and rebound response for a controlled ride on any terrain.

To maintain proper suspension geometry and axle alignment, the kit includes a front adjustable track bar and a rear track bar bracket. For maximum trail capability, the J-Venture system features front sway bar Quicker Disconnects, allowing for significant front-end articulation at the pull of a pin. Front caster cam locks are also included to correct front-end caster alignment once lifted, ensuring predictable handling at highway speeds.

• 2.5-inch lift height tailored for Diesel-equipped 4-door JL models
• FOX 2.0 Performance Series IFP shocks for improved dampening and road manners
• JSPEC dual-rate coil springs designed for consistent ride quality
• Front adjustable track bar and rear bracket for precise axle centering
• Sway bar Quicker Disconnects for increased off-road articulation
• Front and rear bump stop extensions to protect against over-travel
• Caster cam locks included for proper alignment correction

Fits select 2018-2025 Jeep Wrangler JL 4-Door models.

The JKS J-Kontrol suspension system provides a comprehensive 3.5-inch lift solution designed to enhance ground clearance and off-road capability while maintaining exceptional highway stability. As a technical step up from the J-Venture series, the J-Kontrol system adds front control arm correction brackets to flatten the operating angles of your factory upper and lower control arms. This geometry correction is vital for restoring caster and improving steering feel on lifted Wranglers.

This bolt-on system features JSPEC dual-rate coil springs, which provide a smooth initial take-up and increased resistance as the suspension compresses to prevent bottoming out. For damping, JKS includes custom-valved FOX 2.0 Adventure Series gas shocks with aluminum bodies for superior heat dissipation. To ensure the axles remain centered under the chassis, the kit includes a front adjustable track bar and a rear track bar relocation bracket.

• Front and rear FOX 2.0 Adventure Series gas shocks specifically valved for the JL 4-Door platform.
• JKS control arm correction brackets to restore factory caster and improve handling.
• JSPEC dual-rate coil springs designed for consistent ride quality across varied terrain.
• Front adjustable track bar and rear track bar bracket to correct axle positioning.
• Quicker-Disconnect front sway bar links for maximum articulation in off-road environments.
• Front and rear bump stop extensions to properly limit suspension up-travel and protect components.

Fits 2018-2025 Jeep Wrangler JL 2-Door models including Rubicon, Sport, Sport S, Willys, and special editions. This 3-inch J-Kontrol suspension system is engineered to improve ground clearance and trail capability without sacrificing the daily-driver comfort of your JL.

The J-Kontrol system focuses on geometry correction to maintain stability. By using front control arm correction brackets, the kit flattens the upper and lower control arm angles to more closely mimic factory positioning. This corrects caster and improves steering feel and on-road handling. Paired with dual-rate coil springs and FOX 2.0 Performance Series gas shocks—specifically valved for this application—this kit provides a balanced, controlled ride across diverse terrain.

• Front and rear FOX 2.0 Performance Series gas shocks for improved damping performance
• Front control arm correction brackets to optimize caster and suspension geometry
• Dual-rate coil springs (Standard Rate) designed for predictable handling and ride quality
• JKS Quicker Disconnects for increased front-end articulation on the trail
• Adjustable front track bar and rear track bar bracket to ensure precise axle centering
• Front and rear bump stop extensions to properly manage suspension up-travel
• Complete bolt-on installation with all necessary heavy-duty hardware included

Fits select 2018-2025 Jeep Wrangler JL 2-Door models, including Rubicon, Sport, Sport S, Willys, and Islander.

The JKS J-Venture 3-inch suspension system is engineered to provide the ideal balance of highway manners and off-road capability for your 2-door Wrangler. This system increases ground clearance and provides room for larger tires while correcting essential suspension geometry for predictable handling. The kit features dual-rate coil springs paired with Fox 2.0 Performance Series IFP shocks, specifically valved for this platform to ensure superior damping across varied terrain.

To maintain axle alignment and steering precision, the J-Venture kit includes a front adjustable track bar and a rear track bar bracket. For maximum articulation on the trail, it incorporates JKS Quicker Disconnects and extended rear sway bar links. Front caster lock plates are provided to restore front-end geometry after lifting, ensuring stable steering feel.

• Front and Rear Fox 2.0 Performance Series IFP shocks tuned for optimized ride quality
• Front and Rear Dual Rate Coil Springs designed for consistent performance and load carrying
• Front Adjustable Track Bar and Rear Track Bar Bracket for precise axle centering
• Front Sway Bar Quicker Disconnects and Rear Sway Bar Links for improved off-road flex
• Front and Rear Bump Stop Extensions to protect components during full suspension compression
• Front Caster Lock Plates to correct steering geometry and alignment

Fits 2018-2021 Jeep Wrangler JL.

JKS Manufacturing heavy-duty coil springs provide a 3.5-inch front lift while specifically accounting for the added weight of aftermarket accessories. These springs are engineered for Jeep owners who have added heavy steel bumpers, winches, or skid plates, ensuring the vehicle maintains its intended ride height and suspension geometry under load.

Each spring is manufactured from high-tensile steel, shot-peened to increase fatigue life, and preset to prevent future sagging. The black powder-coated finish protects the steel from corrosion in harsh off-road environments, making this kit an ideal foundation for a reliable JL lift system.

• Part Type: Front Coil Spring Kit
• Lift Height: 3.5 inches
• Spring Rate: Heavy Duty (optimized for loaded vehicles)
• Construction: High-tensile steel, shot-peened and preset
• Finish: Black powder coat
• Fitment: 2018-2021 Jeep Wrangler JL

Fits 2018-2025 Jeep Wrangler 2-Door (Rubicon, Sport, Sport S, Willys, 80th Anniversary, Freedom, Islander, and Rubicon X).

The JKS J-Konnect 3-inch suspension system is engineered to enhance the off-road capabilities and strength of your Jeep Wrangler JL 2-Door. While the entry-level J-Venture systems focus on a balance of street and trail performance, the J-Konnect kit steps up durability with the inclusion of J-Link fixed-length lower control arms. These arms are constructed from 2" x .250-wall DOM tubing, significantly increasing strength over factory components while correcting front caster and rear wheelbase geometry. Large factory-style rubber bushings are utilized at both ends to maintain excellent NVH (noise, vibration, and harshness) isolation.

This comprehensive kit includes FOX 2.0 Performance Series gas shocks, custom-valved to complement the dual-rate coil springs for a smooth ride across diverse terrain. To ensure proper axle centering and maximum articulation, the system features an adjustable front track bar, a rear track bar bracket, and JKS Quicker Disconnects. The result is a high-performance suspension that accommodates larger tires and provides aggressive off-road handling without compromising on-road manners.

• Front/Rear FOX 2.0 Performance Series Shocks specifically valved for this 3-inch lift
• Front/Rear J-Link Lower Control Arms made from heavy-duty 2" x .250-wall DOM tubing
• Front/Rear Dual Rate Coil Springs designed for consistent ride quality
• Front Adjustable Track Bar and Rear Track Bar Bracket for precise axle alignment
• Front Sway Bar Quicker Disconnects and Rear Sway Bar Links for improved articulation
• Front/Rear Bump Stop Extensions to safely limit suspension up-travel

Fits 2018-2025 Jeep Wrangler JL 4-Door models including Sahara, Rubicon, Sport, and High Altitude.

The JKS J-Kontrol suspension system provides a 2.5-inch lift while significantly improving geometry and handling over standard lift kits. This system builds upon the J-Venture series by adding front control arm correction brackets, which flatten upper and lower control arm angles to correct caster and eliminate the flighty steering often associated with lifted vehicles. This makes it an ideal choice for daily-driven Jeeps that require stability at highway speeds and articulation on the trail.

This comprehensive kit features JSPEC dual-rate coil springs paired with custom-valved aluminum FOX 2.0 Performance Series gas shocks for a plush ride across varied terrain. To ensure proper axle alignment and suspension travel, JKS includes an adjustable front track bar, a rear track bar bracket, and front/rear bump stop extensions. For maximum off-road performance, the kit also includes Quicker-Disconnect sway bar end links to unlock front-end articulation in seconds.

• FOX 2.0 Performance Series Gas Shocks: Custom-valved aluminum body shocks for superior heat dissipation and damping.
• HD Dual-Rate Coil Springs: Engineered to provide consistent ride quality whether the vehicle is empty or loaded with gear.
• Control Arm Correction Brackets: Realigns factory control arms to restore caster and improve steering geometry.
• Adjustable Front Track Bar: Heavy-duty construction to center the front axle and maintain steering tracking.
• Quicker-Disconnect Sway Bar Links: Allows for rapid disconnection to increase wheel travel on technical trails.
• Complete Bolt-On Installation: Includes all necessary hardware and brackets to maintain factory mounting points.

Fits select 2018-2025 Jeep Wrangler JL 4-Door models.

The JKS J-Kontrol suspension system provides a 2.5-inch lift for the Jeep Wrangler JL Unlimited, increasing ground clearance and off-road capability while maintaining precise handling. This system upgrades the J-Venture platform by adding front control arm correction brackets. These heavy-duty brackets relocate the mounting points for the factory control arms to flatten their operating angle, which corrects caster and improves steering geometry for better stability on the road.

Damping is handled by custom-valved FOX 2.0 Performance Series gas shocks featuring aluminum bodies for superior heat dissipation. These shocks work in tandem with JSPEC dual-rate coil springs, designed to provide a predictable ride over washboard roads and support for heavier accessories. To ensure proper axle alignment, the kit includes a front adjustable track bar and a rear track bar bracket. For maximum trail performance, the system features JKS Quicker-Disconnect sway bar links to unlock front-end articulation when needed.

• Front/Rear FOX 2.0 Performance Series gas shocks with application-specific valving
• Front control arm correction brackets to optimize caster and reduce steering wander
• JSPEC dual-rate coil springs for consistent ride quality and load support
• Heavy-duty front adjustable track bar and rear track bar bracket for axle centering
• Front Quicker-Disconnect sway bar links and extended rear links
• Front and rear bump stop extensions to prevent over-compression and tire rub
• Direct bolt-on installation using factory mounting locations

Fits select 2018-2025 Jeep Wrangler JL 2-Door models including Rubicon, Sport, Willys, and Islander.

The JKS J-Kontrol suspension system provides a 3.5-inch lift for your 2-Door Jeep Wrangler JL, delivering a significant upgrade in ground clearance and off-road capability without sacrificing on-road stability. As a true bolt-on evolution of the J-Venture series, the J-Kontrol system includes front control arm correction brackets that flatten upper and lower arm angles. This design corrects caster and restores factory-like steering geometry and handling characteristics often lost during the lifting process.

This comprehensive kit features custom-valved FOX 2.0 Adventure Series gas shocks and JSPEC HD dual-rate coil springs, tuned specifically for the weight and geometry of the JL platform. Axle positioning is maintained via a front adjustable track bar and a rear track bar bracket, while Quicker-Disconnect sway bar links allow for maximum articulation on the trail. The system is engineered for daily drivability and reliable performance on regular trail use.

• Front and rear custom-valved FOX 2.0 Adventure Series gas shocks for superior damping and heat dissipation
• JSPEC HD dual-rate coil springs designed for consistent ride quality across varied terrain
• Front control arm correction brackets to optimize caster and improve steering feel
• Front adjustable track bar and rear track bar bracket for precise axle alignment under the vehicle
• Front Quicker-Disconnect sway bar links and rear sway bar links for increased off-road articulation
• Front and rear bump stop extensions to properly limit suspension up-travel and protect components