Jeep JL Wrangler 392 3.5" 4-Link, Bolt-On Long Arm Suspension & Lift Kit

Our top of the line Four Link Game Changing Suspension System outperforms all others, featuring patented technology available nowhere else. .

Features Include:

  • Front Long Arm 4-Link Bolt On Control Arms
  • Duroflex™ Joints enhanced with Kevlar
  • 3/16" steel replacement crossmember
  • True Dual Rate™ Coils
  • Durotrak equipped track bars
  • Height adjustable bump stops
  • Specifically tuned shocks for True Dual Rate Coils
  • Suspension Designed for maximum UP and DOWN travel
Our top of the line Four Link Game Changing Suspension System is a bolt on system that requires ZERO welding and features [click for more...] patented technology available nowhere else.

The MetalCloak Game Changing Duroflex™ Joints are the only vulcanized elastomer, self-centering joint enhanced with DuPont™ Kevlar® fiber – providing incredible durability with more misalignment in the control arms and better vibration dampening than anything else available. Exclusive to MetalCloak (see detailed info in the main body).

The Front Four Link Game Changer is comprised of thick 2.0 DOM .25 (1/4) wall steel front lower control arms with strength that can take abuse with forged threaded ends for the ultimate in durability. The upper front control arms are 1.25 .1875 (3/16) and formed to provide clearance for up and down travel. Upper and Lower Control arms utilize our patented Duroflex bushings for bind free, service free articulation.

The Front Long Arm Frame Mounts are used in replacement of the factory mounts to install the front control arms for the long arm suspension. Mounts are fully welded and boxed for maximum strength; the 1/4" steel brackets are low profile for clearance and are finished in gold zinc for a long lasting finish and feature a bolt-on installation without any welding. *Front factory brackets must be removed for install.

The Rear Long Arm does require cutting off the rear factory control arm brackets but provides the most consistent wheelbase over the full range of travel for optimal performance. Lower Control arms are made of strong 2.0 DOM .25 (1/4) wall steel with strength that can take abuse and are enhanced even further with forged threaded ends for the ultimate in durability. The upper rear control arms are 1.5 .1875 (3/16) and formed to provide clearance for both up and down travel. The Rear "BOLT-ON" Control arm brackets are formed of 1/4 Steel Plate and angled to slide over obstacles with out catching. This system does require cutting off the rear factory control arm brackets and is for the off-roader that demands precision when it comes to wheelbase and pinon angles. MetalCloak's Rear Long Arm will feature our best high speed handling properties for on and off-road and will slightly increase a CTI score over similar height DB3 system.

This system comes with a complete 3/16" steel replacement crossmember! The Crossmember is CAD designed, made of thicker steel over factory and provides additional attachment points that adds structure/strength to your Jeep.

MetalCloak True Dual Rate™ Coils provides the most comfortable and stable ride over traditional single rate lift springs, and provide better load handling than the typical "progressive/multi-rate" coils. Our True Dual Rate coils are extra long in free-length to maintain contact for extreme articulation. MetalCloak has over a decade of proven dual-rate coil performance.

The front true dual rate coils come with MetalCloak's Front Lower Coil Correction Pads. This polymer isolator replaces the OEM plastic part and corrects the coil bow that may be caused when using the worn parts. Fits in factory location and is a quick upgrade to fine tune your Jeep.

MetalCloak Thermoset Elastomer Upper Front Coil Isolator upgrade pads are designed to last and outperform factory parts. The pads are made specifically for MetalCloak True Dual Rate Coils and are model specific.

The Durotrak bushings reduce NVH (noise, vibration and harshness) that can be transferred to the driver and provides a smoother ride while also improving the vehicles steering input. The patented bushing is a 2-part design that can rotate 360 degrees in a vertical plane unhindered while minimizing horizontal forces to keep the Jeeps axle centered and you going in the right direction.

We offer a choice in shocks; run the shock set-up you choose to fit your build needs. If you have a different idea of what shocks will work best for you- go for it. MetalCloak suspensions ARE designed to optimally be used with the patented MetalCloak 6Pak™ Shocks for maximum up and down travel. Our RockSport Shocks (Exclusively at MetalCloak) provide the next longest travel you can get with the simplicity of a standard shock and share the same valving as 6Paks; this is a great option if looking for a no-maintenance option at a great price. The choice is yours to buy the suspension with or without shocks; we recommend our specifically tuned shocks but we leave the choice up to you.

Adjustable height front and rear bump stops are a MetalCloak first and allow you to adjust the travel to be tailored to the size of tire you have optioned for. Add more bump stop or remove to adjust to the clearance you need without having to remove the coils.

All MetalCloak suspension components, are designed for maximum up AND down travel while providing the best suspension geometry available to deliver the performance you demand.

MetalCloak “components” have been proven safe with the FMVSS certificate of safety configured with 37inch tires, full body armor and suspension lift.

Note: 6Pak Shocks are not shipped outside of North America. If you are outside of the USA or Canada and order 6Pak shocks or any kit with 6Pak shocks, you are waiving the rights to the lifetime customer service and manufacturers warranty.

Note: Due to the long-travel MetalCloak suspensions provide, factory drive shafts will contact OEM components and wear quickly when at the extremes of articulation. An aftermarket driveshaft will be needed.

Note: MetalCloak engineers have chosen shocks that have been proven to have the ideal synergy with our systems. We have not tested other shocks on the market as to whether they complement our Game-Changer system or suppress its performance.

Note: MetalCloak does not recommend powder coating your True Dual Rate Coils. See instructions for additional details.

Note: We Recommend You Have a Suspension Specialist Align Your Jeep Once a MetalCloak Suspension is Installed.

Note: This item is being offered as a complete system that contains all the components shown. We cannot customize, replace or remove a component from the kit. If you need a custom order, all components are available individually and our sales team is happy to help you place your order.

Note: If you purchase this system, and decide you do not need a component or part of the system, we cannot accept returns.

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Price As Configured:

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Customize Jeep JL Wrangler 392 3.5" 4-Link, Bolt-On Long Arm Suspension & Lift Kit
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VIDEOS

MetalCloak's Jeep JL Wrangler Suspension is the proven leader among production suspension systems.

Who Is MetalCloak?

MetalCloak creates Game-Changing Products for the Off Road Enthusiast.

Why Gold Zinc?

It's time for The MetalCloak Minute... where we answer frequently asked questions in about a minute. Today's topic: Gold Zinc

Duroflex Joint Maintenance

It's time for The MetalCloak Minute... where we answer frequently asked questions in about a minute. Today's topic: Joint Maintenance

Duroflex Joint Revealed

The MetalCloak Duroflex Joint takes the best qualities of OEM style Clevite Joint and the popular Johnny Joint style Flex Joint and combines them.

Vibration Dampening

We tested our Duroflex Joint using a "Shaker Table" and seismometer app to show how much Vibration Dampening the Duroflex Joint gives you compared to other industry leading joints.

A Comparison of Flex

Comparing the Flex of the Duroflex Joint with that of the Johnny Joint, the Teraflex Monster and the typical Clevite.

True Dual Rate Centered Coils 101

This short video covers all you need to know about MetalCloak's True Dual Rate Centered Coils.

Durotrak™ Bushing

Eliminate squeaks and clunks in your steering with the technology of MetalCloak’s Durotrak™ bushings; exclusively found in MetalCloak track bars.

What is Corner Travel Index?

Since 2014 MetalCloak has tested thousands and thousands of rigs at events all across the county collecting specs on the build and cataloging the results. The data collected allows us to make our own products better.

FMVSS 126 Compliant

MetalCloak not only has the best off road flex, but we are also Federal Motor Vehicle Safety Standard 126 certified and compliant. No other company can match our on- and off-road performance.

Proudly Made in the USA

MetalCloak proudly manufactures products in America. Take a glimpse of Our incredible team that lives and breaths innovation and quality.

THE TECH

What's In The Kit?

Whats in the Kit
  • Duroflex Long Arms (Full Set)
  • Front Control Arm Mounts
  • Rear Control Arm Mounts
  • Front/Rear True Dual Rate™ Coils
  • Lower Front Coil Isolator Pads
  • Front Coil Isolators
  • Front/Rear Durotrak™ Track Bars
  • Replacement Crossmember
  • Front/Rear Bump Stops
  • Sway Bar Links

If you Choose...

  • No Shocks - No Shock Mounts, No Shocks
  • Choose My Own - Get Outboard Shock Mounts, No Shocks
  • Use Stock Shocks - Get Shock Mounts, No Shocks
  • Fox Shocks - Get Outboard Shock Mounts, Fox Shocks
  • RockSport Shocks - Get RockSport Shocks & Outboard Shock Mounts
  • 6Pak Shocks - Get 6Paks & Mounting Hardware

IT ALL STARTS WITH THE BUSHINGS

The Patented Duroflex™ Joint (metalcloakpatents.com) is the key to getting the greatest flex in a bolt-on suspension kit. Period.

Duroflex Control Arm Joint Comparison

MetalCloak has taken the best features of the most widely used control arm joints and combined those features to create the Duroflex Joint, producing a Low-Maintenance, High-Misalignment (34˚), Self-Centering, Rebuildable Joint with an OEM quality ride.

Duroflex Kevlar Bushing

Now with Kevlar!

DuPont™ Kevlar® Fiber is now compounded in the proprietary elastomer of the Duroflex Bushing, bringing even more strength, durability and performance.

Kevlar® is a synthetic fiber with extremely high tensile strength to weight ratio…five times stronger than steel and commonly used in bullet proof armor applications.

Duroflex Bushings w/Kevlar® can be identified by the MetalCloak “M” located on the outer surface.

Control Arm Duroflex Joint Alignment...

At MetalCloak we take the care to build every product right.

Most manufacturers build their control arms misaligned from center. Why? It simply costs less to do so.

By not cutting any corners, our joints are Centered and Aligned reducing wear and improving performance.

It makes them easier to install, too!

Duroflex Misaligned

Threaded Forged Ends

Forged Ends

Forged for Strength...

The adjustable threaded ends are Forged providing a 37% higher fatigue strength over inferior cast parts, this EXTRA rock bashing strength will hold up to whatever you throw at em.

Control Arm Specs

JL Wrangler Upper Front (SKU #7291)
  • CNC Formed
  • 3/16" Wall DOM Steel
  • 1 1/4" OD
  • Threaded Forged Ends
  • Precision Locking Nut
  • Gold Zinc Plate
  • Duroflex Joint at Both Ends
  • 1/4" Steel Clevis
JL Wrangler Upper Front Duroflex Control Arms

JL Wrangler Lower Rear (SKU #7294)
  • CNC Formed
  • 1/4" Wall DOM Steel
  • 2" OD
  • Precision Locking Nut
  • Threaded Forged Ends
  • Designed for Oversize Tire Clearance
  • Gold Zinc Plate
  • Duroflex Joint at Both Ends
JK Upper Rear Duroflex Control Arm

Degrees of Articulation

MetalCloak's Duroflex Joint provides 28˚ more articulation and flex than typical control arms! (Learn More About Duroflex Control Arms)

Duroflex Control Arms Articulation Low Articulation Joints

Front Bolt On Control Arm Brackets

MetalCloak Front JK Long Arm Frame Mounts are used in replacement of the factory mounts when installing the front control arms for a long arm suspension. Fully welded and boxed for strength, the 1/4" steel brackets are low profile for clearance and are finished in gold zinc for a long lasting finish.

Front Upper Control Arm Brackets Front Lower Control Arm Brackets

Crossmember

Replacement Crossmember

Our upgraded 3/16" steel replacement cross member is the benchmark of strength.

Thicker steel and additional holes for attachment points, there is no better way to support your Jeep.

What are True Dual Rate Coils?

MetalCloak JL Wrangler True Dual Rate™ Coils have one of the longest free length in the industry for greater articulation without sacrificing the OEM ride quality.


Without the advantage of the Dual Rate Design, the required Spring Rate would be too low and "squishy" -- just loading your Jeep up with supplies would affect ride height and quality. (Learn More About True Dual Rate Coils Front / Rear)

Understanding Dual Rate Coils
SS-2064 SS-2065

Lower Front Coil Isolator Correction Pads

Front True Dual Rate Coil Lower Isolator Pads

Replace the plastic OE factory coil isolator pads that are problematic and cause coil bow. This polymer Isolator replaces the OEM plastic part and corrects the coil bow that may be caused when using the worn parts. Fits in factory location and is a quick upgrade to fine tune your JL Wrangler & JT Gladiator.

Coil Isolators

MetalCloak Thermoset Elastomer Coil Isolator upgrade pads are designed to last and outperform factory parts. The pads are made specifically for MetalCloak True Dual Rate Coils and are model specific.

Front Upper Coil Isolators

Not just any track bar bushing...meet the Patented Durotrak

Durotrak Bushing

The Patented Durotrak Bushing (metalcloakpatents.com) is a NVH (noise, vibration, harshness) bushing made with a proprietary elastomer compound unique to MetalCloak. The Durotrak two part bushing is comprised of two pieces that thread together making this bushing simple to install without a press, reduces vibration and harshness transferred to the driver, and improves vehicle steering input. (Learn More About Durotrak Track Bars Front / Rear)

Designed For Stength & Clearance

Formed for ultimate Up-Travel & Down-Travel the JL Wrangler Front Track Bar gives unprecedented strength, clearance, and improved ride stability.

JL Front Durotrak Track Bar

Solid Chromoly track bars keeps you... well.. on track

JL Wrangler Hi Clearance Rear Track Bar

Rear Long Arm System

The rear long arm system provides thick 2.0 DOM .25 (1/4) wall steel rear lower control arms with strength that can take abuse with forged threaded ends for the ultimate in durability. The upper rear control arms are 1.5 .1875 (3/16) and formed to provide clearance for up and down travel. The Rear "BOLT-ON" Control arm brackets are formed of 1/4 Steel Plate and angled to slide over obstacles with out catching. This system requires cutting off the factory control arm brackets and is for the Rock Crawler that demands precision when it comes to wheelbase and pinon angles. MetalCloaks Rear Long Arm will feature our best high speed handling properties for on and off-road and will increase a CTI score over similar height DB3 system.

JL Wrangler Bolt On four link rear system

JL Wrangler Upper Rear (SKU #7293)
  • CNC Machined
  • 3/16" Wall DOM Steel
  • 1.5" OD
  • Threaded Forged End
  • Precision Locking Nut
  • Gold Zinc Plated
  • Duroflex Joint at Both Ends
JL Wrangler Upper Rear Duroflex Control Arms

JL Wrangler Lower Rear (SKU #7294)
  • CNC Machined
  • 1/4" Wall DOM Steel
  • 2" OD
  • Threaded Forged Ends
  • Precision Locking Nut
  • Gold Zinc Plated
  • Duroflex Joint at Both Ends
JL Wrangler Lower Rear Duroflex Control Arms

Rear Long Arm Brackets

This system requires cutting off the factory rear control arm brackets and is for the Rock Crawler that demands precision when it comes to wheelbase and pinon angles. The Rear Long Arm System comes with Rear "BOLT-ON" control arm brackets that are formed of 1/4" Steel Plate and angled to slide over obstacles with out catching.

Rear Long Arm Brackets

Stop The Guess Work. Bump It Up!

Front Adjustable Bump Stops
MetalCloak Adjustable Bump Stop System...
  • Adjust from 1" - 4" Without Removing Coils
  • Perfect Height Regardless of Tire Size
  • Thermoset Elastomer Dampens Impact
  • Additional Pads Available on Request
(Learn More About Front Adjustable Bump Stops)

Rear Adjustable Bump Stops!

Manufactured from trail-proven natural thermoset elastomer, each puck is designed to work universally with your JLU Wrangler.

Designed specifically for the JLU Wrangler, the system comes with 4 Rectangular Pucks, allowing for easy adjustment between 1" - 4". (Learn More About Rear Adjustable Bump Stops)
Rear Bump Stops

Outboard Shock Mount

MetalCloak Jeep JLU Outboard Front Lower Shock Mount Spacer Kit:
  • Engineered to move the lower shock mounts away from the Jeep frame rails increasing clearance for the shock body at the extremes of articulation.
  • All Grade 8 hardware provided.

  • Treated with Gold Zinc Chromate for the ultimate in defense against the elements.
  • Manufactured from laser cut 3/16" steel and CNC bent for superior strength and exact fitment.
Bracket rotates shock eyelet; allows it to swing with the axle vs bind on the limited elastomer material. The Outboard Front Lower Shock Mount Spacer comes in the NO Shock, RockSport Shock Kits Only. The 6Pak Shocks do not require the outboard shock mount. (Learn More About The Outboard Shock Mount)

IMPORTANT NOTE: If using OE wheels 2" spacers will be needed to give proper clearance. These mounts are intended for use for wheels with 4.5" of backspacing or less or an equivalent of a 2" spacer on factory wheels.
Outboard Shock Spacer

Choose Your Shocks

The 6Pak™ Shock

The design of the 6Pak didn't just revolutionize shocks, it changed the suspension game forever.

The Patented MetalCloak 6Pak™ (metalcloakpatents.com) provides the longest shock travel relative to a compressed length for any off-road shock ever built in history, period.

MetalCloak's Long-Travel Shock Technology provides a game-changing platform featuring parallel shafts extending from a floating body, centralized by dual opposing reservoirs; this revolutionary feature allows for twice the usual stroke over typical industry shocks.

Now the problems of low-hanging shocks or limited travel because of your shock body are fully and completely eliminated.

The shock is no longer the limiting factor in your build.

(Learn More About 6Pak Shocks)
6Pak Shocks
RockSport Shock Option

The RockSport RED Shock

It’s not just a shock, it is a piece in a tuned system. This is not a typical bolt on shock. RockSport RED shocks are valved and specifically tuned to work with MetalCloak True Dual-Rate Coils.

MetalCloak has refined the RockSport RED Shocks compression and dampening to provide stable, yet compliant manners for daily driving and also in situations where Long Travel articulation is needed to keep the tires planted on the ground. (Learn More About RockSport Shocks)

RockSport RED Front Shock Length:
  • Extended Length: 30.0"
  • Collapsed Length: 17.7"
RockSport RED Rear Shock Length:
  • Extended Length: 30.0"
  • Collapsed Length: 17.7"

The RockSport Black Shock

The RockSport Remote Reservoir Black shocks are specifically made to work with MetalCloak True Dual-Rate Coils; the Digressive valving provide the best of slow and fast speed performance.

Shocks are made with 2.5 diameter, 3/16 thick wall aluminum with a huge interior for fluid to ensure they stay cool and hold up to on and off-road abuse.

RockSport Black Front Shock Length:
  • Extended Length: 28.5"
  • Collapsed Length: 17.2"
RockSport Black Rear Shock Length:
  • Extended Length: 30.5"
  • Collapsed Length: 18.2"
Front RockSport Shock Compression

Outboard Stand Off Mounts

RockSport Black Shock Standoffs

Shock attaches with built-in off set mounts that allow for long travel capabilities with the convenience of an OE like fitment.

Eight Settings Compression Adjustment

Large, easy to grip billet knob with laser marked numbers allow you to change the compression setting simply; choose from 8 settings that add an additional 15% compression force at each click to tune in your Gold Standard. Dial in your off-road comfort along with great daily driving performance.

Front RockSport Black Shock Eight Setting Compression

Braided Hydraulic Hose

Front RockSport Shock Compression

The Remote reservoir connects to the shock with a high pressure, polymer overlaid, stainless-steel braided, reinforced , Teflon inner core, hydraulic hose, with optimized flow orifices to allow unhindered shock oil flow.

TECHNICAL SPECIFICATIONS

Items Materials
Control Arms 1 1/2" x .187 DOM Steel Tubing
1 5/8" x .25 DOM Steel Tubing
Duroflex Joint Proprietary Vulcanized Elastomer made with DuPont™ Kevlar® fiber
True Dual Rate Coils High Tensile Chrome Steel
Coil Isolators Thermoset Elastomer
Track Bar 4130 Solid Chromoly
Durotrak Bushing Proprietary Vulcanized Elastomer
Front & Rear Adjustable Bump Stops Thermoset Elastomer
Steel Coating Gold Zinc

IMPORTANT NOTES



Warranty: 6Pak Shocks are not shipped outside of North America. If you are outside of the USA or Canada and order 6Pak shocks or any kit with 6Pak shocks, you are waiving the rights to the lifetime customer service and manufacturers warranty."

Driveshaft: Due to the long-travel MetalCloak suspensions provide, factory drive shafts will contact OEM components and wear quickly when at the extremes of articulation. An aftermarket driveshaft will be needed. (Front Auto Transmission Drive Shaft)

True Dual Rate Coils: MetalCloak does not recommend powder coating your True Dual Rate Coils. See instructions for additional details.

Suspension Alignment: We recommend you have a suspension specialist align your Jeep once a MetalCloak suspension is installed.

System Customization: This item is being offered as a complete system that contains all the components shown. We cannot customize, replace or remove a component from the kit. If you need a custom order, all components are available individually and our sales team is happy to help you place your order.

System Components: If you purchase this system, and decide you do not need a component or part of the system, we cannot accept returns.

INSTALLATION

Installation Difficulty Moderate
Body Modification None
Time to Install 24 Hours
Installation Instructions Click Here to see a full list of MetalCloak Installation Instructions.
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