Protect your front suspension components with the Synergy Heavy Duty Front Ball Joint Dust Boot Set (8009-1202). Designed specifically for Jeep Wrangler JK and Grand Cherokee WJ models equipped with Dana 30 or Dana 44 front axles, these boots serve as a durable replacement for torn, cracked, or weathered factory boots.

Maintaining intact dust boots is critical for ball joint longevity; once a seal is compromised, road grime, salt, and moisture can enter the joint, leading to grease contamination and accelerated wear. These heavy-duty boots are engineered to withstand the rigors of off-road articulation and environmental exposure better than standard OE-style rubber.

• Fits 1999-2004 Jeep Grand Cherokee WJ and 2007-2018 Jeep Wrangler JK
• Designed for Dana 30 and Dana 44 front axle housings
• Includes one (1) upper ball joint boot and one (1) lower ball joint boot
• Heavy-duty material construction for superior tear and abrasion resistance
• Essential for preventing premature ball joint failure due to contamination
• Manufacturer Part Number: 8009-1202

Fits 1999-2004 Jeep Grand Cherokee WJ and 2007-2018 Jeep Wrangler JK models with Dana 30 or Dana 44 front axles.

The Synergy Manufacturing HD Knurled Front Ball Joint Set (8009-12) is engineered to restore steering precision and axle integrity on lifted or high-mileage Jeeps. These heavy-duty replacements are specifically designed with a knurled housing to ensure a secure, interference fit in axle C-gusset bores that may have become slightly enlarged or wallowed out from previous installations. This set provides a complete solution for one front axle, replacing failure-prone OE plastic-lined joints with a more robust metal-on-metal design capable of handling the increased leverage of larger off-road tires.

• Includes two upper and two lower heavy-duty ball joints
• Knurled outer housing provides a tighter press-fit in worn axle housings
• Designed specifically for Dana 30 and Dana 44 front axle applications
• Ideal for vehicles running oversized tires or subjected to frequent off-road use
• Manufacturer Part Number: 8009-12

Fits 2007-2018 Jeep Wrangler JK and JKU models equipped with 3.0-inch OD axle housings.

Synergy HD Front Lower Control Arm Brackets provide a rugged solution for replacing or upgrading the vulnerable factory mounts on your Wrangler JK front axle. These brackets are engineered to withstand the impacts and stresses of off-road use, offering significantly more strength and rigidity than the original thin-gauge stamped steel components. Whether you are repairing a damaged mount or building a custom axle, these heavy-duty brackets ensure your front suspension geometry remains secure.

• Designed specifically for 3.0-inch outside diameter (OD) axle housings
• Heavy-duty steel construction for superior durability over OE mounts
• Precision CNC laser cut and formed for accurate fitment
• Direct replacement for factory front lower control arm brackets
• Manufacturer Part Number: 8009-02

Fits 2007-2018 Jeep Wrangler JK and JKU models.

The Synergy Manufacturing Fox Steering Stabilizer Relocation Bracket (8007) is engineered to move your steering stabilizer up and out of harm's way. On the Jeep JK platform, the factory stabilizer mounting position is notoriously low, leaving the stabilizer body and shaft vulnerable to impact from rocks and trail obstacles. This bracket relocates the stabilizer to a higher, more protected position above the tie rod, significantly reducing the risk of a bent shaft or fluid leak during off-road excursions.

• Specifically designed for compatibility with Fox steering stabilizers
• Moves the stabilizer to a high-mount position to prevent trail damage
• CNC laser cut and bent from high-strength steel for maximum rigidity
• Durable powder coat finish for superior corrosion and abrasion resistance
• Simple bolt-on installation to the factory axle brackets
• Manufacturer Part Number: 8007

Designed for 2007-2018 Jeep Wrangler JK and JKU models, the Synergy Manufacturing TRE Flip Adapter is a critical component for correcting steering geometry on lifted vehicles. This adapter allows for the relocation of the drag link from the bottom of the steering knuckle to the top, effectively raising the drag link to restore a more desirable angle and reduce bump steer.

• Precision machined to fit a 7/8 inch tapered bore in the steering knuckle
• Essential for high-steer conversions and drag link flip kits
• Compatible with factory or aftermarket tie rod ends using a 7/8 inch shank
• Helps eliminate steering feedback and improves handling on lifted JKs
• Manufacturer Part Number: 8000-02

Fits 2007-2018 Jeep Wrangler JK and JKU models.

The Synergy Manufacturing Heavy Duty Drag Link (8000-01) is a direct-replacement steering upgrade designed to address the vulnerabilities of the factory JK steering system. Engineered for drivers running larger tires or navigating technical terrain, this HD drag link replaces the thin-walled OE component with a high-strength alternative that resists bending and minimizes steering deflection.

This drag link is fully adjustable, allowing for precise steering wheel centering without requiring removal from the vehicle. It features heavy-duty rod ends designed to handle increased articulation and high-torque loads, ensuring long-term reliability and a firmer steering feel on and off the trail.

• Heavy-duty construction for superior strength over OE components
• Designed specifically for the 2007-2018 Jeep Wrangler JK/JKU platform
• Adjustable design for easy steering wheel centering and alignment
• Includes high-quality rod ends and installation hardware
• Replaces factory part to improve steering response and durability
• Manufacturer Part Number: 8000-01

Fits 2005-2016 Ford F-250, F-350, F-450, and F-550 Super Duty 4WD trucks.

The Synergy Heavy Duty Adjustable Front Track Bar Adapter (MPN 767510-01) is engineered to restore proper suspension geometry and axle alignment on lifted or leveled Ford Super Duty trucks. This high-strength adapter provides the necessary interface to allow for precise track bar adjustment, ensuring the front axle is perfectly centered under the chassis to maintain predictable handling and even tire wear.

• Manufacturer Part Number: 767510-01
• Enhanced Durability: Heavy-duty construction designed to withstand the increased stresses of off-road use and larger tire diameters.
• Geometry Correction: Helps eliminate tracking issues and reduces the risk of steering oscillation common in modified suspension systems.
• Precise Fitment: Designed specifically for the front axle architecture of 2005-2016 Ford Super Duty platforms.

Correct your axle geometry and restore steering precision with the Synergy MFG Heavy Duty Adjustable Front Track Bar. Engineered specifically for 2005+ Ford F-250 and F-350 Super Duty 4WD trucks, this heavy-duty bar is essential for re-centering the front axle after installing a suspension lift. By bringing the axle back into alignment, it prevents tracking issues and improves overall handling stability.

Built to withstand the loads of oversized tires and heavy off-road use, this track bar is constructed from 1.5-inch OD x .250-wall DOM tubing. It features a double adjuster mechanism, allowing for precise length changes while the bar is still installed on the vehicle—eliminating the tedious process of repeatedly removing and reinstalling the part to find the correct setting. The clear zinc plating provides a durable finish against corrosion and road debris.

• Fits 2005-present Ford F-250 and F-350 Super Duty 4WD models.
• Adjustable length allows for proper axle centering from stock height up to 6 inches of lift.
• Heavy-wall DOM steel construction provides significantly higher strength than the factory unit.
• On-vehicle double adjuster simplifies the alignment process.
• Compatible with factory track bar brackets or dropped brackets for taller lifts.
• Direct bolt-on replacement for a straightforward installation.
• Manufacturer Part Number: 7675-02.

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

Upgrade your front suspension with the Synergy Manufacturing Dual Durometer Bushing (DDB) designed for front upper control arms (UCA). These bushings solve the common problem of suspension bind by utilizing a maintenance-free, grease-less design. The inner sleeve rotates a full 360 degrees, allowing for maximum articulation and smoother suspension travel without the noise or harshness associated with standard polyurethane bushings.

• Manufacturer Part Number: 4326-02
• Component: Front Upper Control Arm Dual Durometer Bushing
• Bolt Size: 12mm
• Width: 2.00 inches
• Material: Dual Durometer elastomer for improved damping and durability
• Design: Maintenance-free, grease-less inner sleeve for 360-degree rotation
• Fitment: Replaces bushings in select front upper control arms with a 2.00-inch mounting width

This Synergy Dual Durometer (DDB) Track Bar Bushing is engineered as a high-performance, maintenance-free replacement for select Jeep Wrangler JK, Wrangler Unlimited JKU, and Cherokee XJ applications. Designed to fit track bars requiring a 1-7/8-inch x .188-inch wall bushing shell, this component significantly reduces noise, vibration, and harshness (NVH) while maintaining precise axle alignment.

The Dual Durometer design features a unique internal structure that allows for high articulation without the binding or premature wear associated with traditional rubber or polyurethane bushings. This maintenance-free design is self-centering and requires no grease, making it an ideal choice for vehicles subjected to harsh off-road environments and daily street use alike.

• Manufacturer Part Number: 4323-01
• Bushing Type: Dual Durometer (DDB)
• Bolt Diameter: 9/16 inch
• Shell Dimensions: 1-7/8" Outer Diameter x .188" Wall Thickness
• Vehicle Fitment: Fits Jeep Cherokee XJ and Wrangler JK/JKU track bars
• Service Requirement: Maintenance-free, no grease required

Upgrade your suspension system with the Synergy Manufacturing Dual Durometer Bushing (DDB), designed specifically for lower control arm applications. This maintenance-free bushing features a unique design that combines the ride quality of a soft rubber bushing with the articulation and durability required for off-road performance. The Dual Durometer technology allows for significant axial and radial movement without the binding or squeaking often associated with standard polyurethane bushings.

Engineered for longevity and performance, this bushing is self-centering and requires no lubrication, making it an ideal replacement for worn-out OE bushings or for use in custom suspension builds. The internal sleeve is precision-machined to accommodate 14mm hardware, ensuring a secure and exact fit within the control arm housing.

• Part Number: 4320-01
• Bushing Type: Dual Durometer (DDB)
• Bolt Size: 14mm
• Mounting Width: 2.618 inches
• Construction: Maintenance-free, self-centering design
• Performance: Reduces NVH (Noise, Vibration, Harshness) and prevents binding

Fits 2018-2024 Jeep Wrangler JL and 2020-2024 Jeep Gladiator JT models.

Engineered to handle the increased mechanical loads of oversized tires and off-road articulation, the Synergy Manufacturing Heavy Duty Ball Joint Set (MPN 4170-04) replaces the failure-prone factory plastic-lined joints. This kit includes one upper and one lower ball joint, providing a complete solution for one side of your front axle. The knurled housing is specifically designed for axle C-hooks that have been slightly enlarged or stretched from previous ball joint installations, ensuring a secure, press-fit seat that won't shift during wheeling.

• Heavy-duty metal-on-metal design for increased longevity and impact resistance
• Knurled body ensures a tight fit in worn or oversized axle housings
• Greaseable design allows for regular maintenance and flushing of contaminants
• Pre-installed dust boots protect internal components from trail debris
• Includes (1) Upper Ball Joint and (1) Lower Ball Joint with all required hardware
• Manufacturer Part Number: 4170-04

Fits 2018-present Jeep Wrangler JL and 2020-present Jeep Gladiator JT models.

Replace the vulnerable factory plastic-lined components with the Synergy Manufacturing Heavy Duty Ball Joint Kit. Engineered specifically for the increased loads of oversized tires and off-road articulation, these ball joints provide a significant upgrade in durability and steering precision over original equipment. The design addresses the common failure points in the JL and JT front axle, ensuring your suspension maintains proper alignment under stress.

• Includes (1) heavy-duty upper ball joint and (1) heavy-duty lower ball joint (services one side)
• Designed as a direct-fit replacement for the factory inner C
• High-performance metal-on-metal design for superior longevity
• Greasable fittings allow for routine maintenance and debris flush
• Replaces weak factory nylon-lined joints to eliminate steering play
• Manufacturer Part Number: 4170-01

Fits Jeep Wrangler JK, JL, and JLU models. This Synergy Manufacturing HD Steering Knuckle Tie Rod End is engineered for off-road durability, providing a significant upgrade over standard steering components in high-stress environments.

Designed for longevity and performance, this tie rod end replaces traditional nylon-lined bushings with a robust metal-on-metal bearing design. This construction ensures a more consistent steering feel and greater resistance to the high-impact loads encountered during technical crawling and trail use. The greaseable design allows for routine maintenance to flush out contaminants and extend the service life of your steering assembly.

• Construction: High-strength steel with a greaseable metal-on-metal bearing surface.
• Thread Specification: 1-14 LH (Left Hand) thread pitch.
• Application: Direct replacement for steering knuckle mounting points on compatible Jeep steering systems.
• Reliability: Heavy-duty design provides increased wear resistance over factory-style components.
• Manufacturer Part Number: 4163-L

Designed for the rigors of off-road use, the Synergy Manufacturing HD Drag Link Single Plane Tie Rod End (4162-L) provides a heavy-duty solution for Jeep Wrangler JL and JLU owners. This replacement joint is specifically engineered for drag link applications where preventing steering "flop" is critical for maintaining precise handling and reducing wander.

Unlike standard nylon-lined joints, this tie rod end features a robust metal-on-metal construction. This design offers superior load-bearing capacity and a significantly longer service life, making it an essential upgrade for vehicles with oversized tires or high-clearance suspension systems. The single-plane design restricts vertical movement, ensuring your drag link remains in the optimal position throughout the steering cycle.

• Part Number: 4162-L
• Thread Pitch: 1-14 LH (Left-Hand Thread)
• Construction: Heavy-duty metal-on-metal internal design
• Serviceability: Fully greaseable for extended component life
• Design: Single plane joint to eliminate drag link flop
• Compatibility: Fits Jeep Wrangler JL and JLU models equipped with compatible drag links

The Synergy Manufacturing 4160-L is a heavy-duty single plane tie rod end engineered specifically for Dodge Ram HD steering systems. Unlike standard tie rod ends, the single-plane design is built to eliminate the rotational "flop" common in heavy-duty steering linkages, ensuring more precise steering input and reducing wear on the assembly.

Constructed for longevity under high-stress conditions, this tie rod end features a robust metal-on-metal internal design. This construction provides significantly higher durability and resistance to impact than standard nylon-bushed alternatives, making it an ideal choice for vehicles with larger tire diameters or frequent off-road use.

• Manufacturer Part Number: 4160-L
• Design: Single Plane (limits vertical rotation/steering flop)
• Internal Construction: Heavy-duty metal-on-metal
• Thread Pitch: 1-14 LH (Left Hand Thread)
• Compatibility: Designed for Dodge Ram HD steering upgrades

Fits select 1984-2006 Jeep Wrangler YJ, TJ, and LJ, Cherokee XJ, and Grand Cherokee ZJ (Dana 30 / Dana 44 axles).

Upgrade your Jeep's front end with the Synergy Manufacturing HD Non-Knurled Front Ball Joint Set (4140-6004). These heavy-duty joints are engineered to replace weak factory components, providing the strength needed to handle the increased leverage and weight of oversized tires and off-road articulation. The non-knurled design is specifically intended for axle housings that have not been stretched by previous oversized joints, ensuring a precise, factory-spec press-fit into the inner C.

• Heavy-duty construction designed for long-term reliability in lifted applications
• Non-knurled housings maintain the integrity of the axle C-gusset for a secure fit
• Direct replacement for OEM Dana 30 and Dana 44 front ball joints
• Complete set for one front axle
• Manufacturer Part Number: 4140-6004

Fits select 2007-2018 Jeep Wrangler JK and JKU models.

This Synergy Manufacturing Heavy Duty Single Plane Tie Rod End is engineered specifically to eliminate "tie rod flop" on JK steering systems. Unlike standard tie rod ends that can rotate on a ball-and-socket axis, the single-plane design restricts movement to a single axis. This prevents the tie rod from rolling forward or backward while maintaining the full range of steering articulation required for off-road use.

Built for durability, this end features a metal-on-metal bearing surface that is fully greasable to ensure a long service life and consistent performance under high loads. It is an ideal replacement or upgrade for enthusiasts running oversized tires or heavy-duty steering components.

• Manufacturer Part Number: 4139-L
• Thread Pitch: 7/8-18 LH (Left Hand)
• Design: Single plane to prevent steering component rotation/flop
• Construction: Metal-on-metal bearing for maximum durability
• Greasable: Integrated zerk fitting for easy maintenance
• Includes: Tie rod end, castle nut, and cotter pin

Fits 2013-2023 RAM 2500 and 3500 HD 4x4 trucks.

The Synergy Manufacturing Metal on Metal LH Tie Rod End is a heavy-duty steering solution designed to replace the wear-prone factory tie rod ends on 4x4 RAM Heavy Duty trucks. Engineered for the rigors of off-road use and oversized tires, this component features a robust metal-on-metal bearing design. Unlike OE plastic-lined sockets, this architecture ensures maximum durability and precise steering feedback under high-load conditions.

• Heavy-duty metal-on-metal design replaces weak OE plastic liners
• Internal grease grooves for consistent lubrication and contaminant evacuation
• Durable black finish for enhanced corrosion resistance
• Direct replacement for the Left Hand (LH) side steering position
• Manufacturer Part Number: 4138-L

Fits 1994-1999 Dodge Ram 1500, 2500, and 3500 4x4 models.

The Synergy 4136-L Heavy Duty Left Hand (LH) Tie Rod End is engineered to provide superior steering precision and durability for second-generation Dodge Ram trucks. Designed to withstand the stresses of off-road use and larger tire setups, this component features a robust metal-on-metal design that eliminates the deflection found in standard nylon-lined joints.

• Direct-fit heavy-duty replacement for the left-hand side tie rod end
• Metal-on-metal design ensures maximum service life and steering feel
• Constructed for the specific geometry of Dodge Ram 4x4 steering systems
• Black and silver finish for lasting corrosion resistance
• Manufacturer Part Number: 4136-L

Fits select 1984-2006 Jeep Wrangler TJ/LJ, Cherokee XJ, and Grand Cherokee ZJ.

Engineered for the rigors of off-road use, the Synergy 4135-R Heavy Duty Tie Rod End replaces weak factory components with a robust, metal-on-metal design. Unlike OE-style ends that often use plastic or nylon liners, this metal-on-metal bearing surface provides superior durability and maintains precise steering alignment under heavy loads and increased articulation.

• Part Number: 4135-R
• Thread Size: 7/8-18 RH (Right Hand Thread)
• Design: Metal-on-metal bearing for maximum strength and longevity
• Greasable: Includes integrated grease zerk for easy maintenance
• Hardware: Includes castle nut and cotter pin

Fits select 1984-2006 Jeep Wrangler TJ, LJ, Cherokee XJ, and Grand Cherokee ZJ models.

The Synergy Manufacturing Heavy Duty Metal on Metal Tie Rod End is engineered for the rigorous demands of off-road steering systems. Unlike standard nylon-lined joints that can deform under high-impact loads or intense heat, this tie rod end utilizes a robust metal-on-metal bearing design. This construction maintains steering precision and significantly extends service life in harsh environments. The 7/8-18 LH thread configuration makes it a reliable choice for custom steering links, drag links, and high-steer conversions.

• Metal-on-Metal Design: Internal bearing surfaces provide maximum durability and resist the wear common in plastic-lined alternatives.
• Thread Specifications: 7/8-18 LH (Left Hand) thread pitch.
• Serviceable Hardware: Fully greaseable design with an integrated Zerk fitting to allow for routine maintenance and contaminant purging.
• Heavy-Duty Build: Built to withstand the increased leverage and stresses of oversized tires and lifted suspension geometries.
• Manufacturer Part Number: 4135-L

Fits 2000-2013 Dodge Ram 1500, 2500, and 3500 4x4 models.

The Synergy Manufacturing Heavy Duty (HD) Left Hand (LH) Tie Rod End is engineered to replace worn factory steering components with a focus on durability and precision under high-load conditions. Unlike standard plastic-lined units, this tie rod end features a metal-on-metal design that provides maximum strength and longevity for trucks equipped with larger tires or those used in demanding off-road and towing environments.

• Metal-on-Metal Construction: High-strength internal design resists deformation and wear better than OE alternatives.
• Greasable Joint: Includes a grease zerk to allow for routine maintenance and the flushing of contaminants.
• HD Housing: Robust forged housing with a black finish for superior corrosion resistance in harsh climates.
• LH Application: Specifically designed for the Left Hand (Driver Side) position of the steering linkage.
• MPN: 4134-L

Fits select 1994-2013 Dodge Ram 1500, 2500, and 3500 heavy-duty trucks.

This Synergy Manufacturing Heavy Duty (HD) Tie Rod End is engineered specifically for the drag link on 2nd, 3rd, and early 4th generation Ram trucks. It features a Left Hand (LH) thread shank and a premium metal-on-metal design. By eliminating the common failure points associated with nylon or plastic liners found in standard OE replacements, this tie rod end provides the durability and precise steering feedback required for heavy-duty applications and trucks running oversized tires.

• Metal-on-metal design ensures maximum longevity and resistance to high-load wear.
• Specifically configured for the drag link with a Left Hand (LH) thread shank.
• Designed to withstand the rigors of heavy-duty use and off-road conditions.
• Direct replacement component for Synergy steering systems or compatible HD upgrades.
• Manufacturer Part Number: 4133-L

Fits 2007-2018 Jeep Wrangler JK and JKU models.

The Synergy Manufacturing 4131-R is a heavy-duty replacement tie rod end designed to withstand the increased steering loads of lifted Jeeps and larger tire diameters. Unlike standard plastic-lined joints, this tie rod end features a robust metal-on-metal bearing surface, providing superior durability and precise steering feedback during technical off-road maneuvers.

This right-hand thread component is engineered as a direct upgrade for steering systems requiring a 7/8-18 RH thread pitch. The greasable design allows for easy maintenance, ensuring a long service life even in harsh environments.

• Manufacturer Part Number: 4131-R
• Thread Pitch: 7/8-18 RH (Right Hand)
• Bearing Design: Heavy-duty metal-on-metal
• Greasable for simplified maintenance and longevity
• Application: Replaces worn OE or aftermarket tie rod ends on select JK/JKU steering kits

Fits 2007-2018 Jeep Wrangler JK and JKU (Unlimited) models.

Engineered to withstand the rigors of off-road use and larger tire setups, the Synergy Manufacturing Heavy Duty Tie Rod End (MPN 4131-L) features a robust metal-on-metal bearing design. Unlike standard nylon-lined OE joints that can deflect under load, this metal-on-metal construction provides a more direct steering feel and superior durability in high-articulation environments.

This component is designed specifically for steering setups utilizing 7/8-18 LH threads. The greaseable design allows for regular maintenance to purge contaminants and ensure a long service life.

• Manufacturer Part Number: 4131-L
• Thread Pitch: 7/8-18 LH (Left Hand)
• Internal Design: High-strength metal-on-metal bearing
• Maintenance: Fully greaseable for extended service life
• Housing: Heavy-duty forged construction

Fits 2007-2018 Jeep Wrangler JK and JKU models.

The Synergy Manufacturing Low Misalignment Tie Rod End Boot (MPN 4131-11) is engineered for steering systems requiring a low-profile seal that won't bind or tear during extreme suspension articulation. This boot provides a secure seal to prevent contaminants from entering the joint, which is critical for maintaining the service life of high-performance steering components on the trail.

Constructed from durable, tear-resistant rubber, this component replaces worn or damaged factory-style boots on compatible tie rod ends. Its specific geometry is optimized for low-misalignment applications where a standard, bulkier boot might interfere with the tie rod body or knuckle during steering cycles.

• Designed specifically for low-misalignment steering applications
• Durable rubber construction resists tearing and environmental degradation
• Protects joint internals from dirt, water, and grit
• Direct replacement for Synergy tie rod end assemblies
• Manufacturer Part Number: 4131-11

The Synergy Manufacturing HD Tie Rod End Dust Boot (4131-01) is a precision-molded replacement designed specifically for heavy-duty steering components featuring metal-on-metal joint construction. Maintaining a sealed environment is critical for steering longevity, as a torn boot allows moisture and road grit to contaminate the grease and accelerate abrasive wear.

• Specifically engineered for Synergy HD metal-on-metal tie rod ends
• Durable elastomer construction resists oil, grease, and environmental exposure
• Helps maintain precise steering feel by protecting internal joint surfaces
• Ensures grease retention within the joint housing
• Direct replacement for part number 4131-01

Ensure your steering system remains reliable by replacing cracked or compromised boots before internal joint damage occurs. This boot provides the tight seal necessary for off-road and high-stress applications.

Designed for Jeep Wrangler JK and Grand Cherokee WJ models, this Synergy MFG Heavy Duty Knurled Adjustable Ball Joint Kit (4127KN) provides a high-strength alternative to factory components. These ball joints are engineered to handle the increased loads and stresses common with larger tires and off-road use.

The knurled housing is specifically designed for axle housings where the ball joint bore may have been slightly enlarged or distorted from previous installations, ensuring a secure, tight press-fit. Additionally, the adjustable design allows for precise alignment correction, helping to restore proper camber and caster settings on lifted or modified vehicles.

• Fits Jeep Wrangler JK and Grand Cherokee WJ models
• Heavy-duty construction for increased durability over OE units
• Knurled housing provides a secure fit in oversized or worn axle bores
• Adjustable design allows for fine-tuning vehicle alignment
• Includes necessary hardware for a complete installation
• Manufacturer Part Number: 4127KN

Fits 2007-2018 Jeep Wrangler JK / JKU and 1999-2004 Jeep Grand Cherokee WJ.

The Synergy Manufacturing HD Adjustable Ball Joint Kit (MPN 4127) is engineered to replace the prone-to-failure factory ball joints on solid-axle Jeep platforms. These heavy-duty components are specifically designed for vehicles running larger tires and aftermarket wheels, which place increased leverage and stress on the steering axis. The adjustable design allows for precise tuning of camber and caster, helping to correct alignment issues often found on lifted vehicles or those with bent axle housings.

This kit features a non-knurled housing. Non-knurled ball joints are the preferred choice for axle C's that have not been previously ovaled out, as they maintain a precise factory-spec press fit without permanently stretching the bore. This ensures maximum longevity of your axle components and a more secure installation.

• Heavy-duty construction significantly exceeds OE durability standards
• Adjustable design allows for alignment correction of camber and caster
• Non-knurled housings preserve the integrity of the axle C bore
• Greaseable design for easy maintenance and extended service life
• Includes all necessary hardware for a complete installation
• Manufacturer Part Number: 4127