Jeep JK Wrangler 4.5" 4-Link & DB3, Bolt-On Long Arm Compound Suspension & Lift Kit
The Jeep JK Wrangler 4-Link Long Arm Compound Suspension Systemis the only 4-Link Long Arm system that combines technology with the Patent Pending DB3 Rear Geometry correction brackets that give the best control arm angle available at this lift height. (metalcloakpatents.com).
Features Include:- Front Weld on Upper control arm brackets
- DB3 Rear Geometry Correction Brackets (Optional)
- High-Misalignment Vibration Dampening Duroflex™ Control Arms
- Front Durotrak™ Bushing equipped track bar
- Rear Durotrak™ Bushing equipped track bar
- Rear Coil Alignment Retainers
- True Dual Rate™ Coils
- HD Drag Link
- Track Bar and Stabilizer Relocation Bracket
- Hi-Clearance Rear Track Bar Bracket
- Shock mount relocation brackets
- Adjustable bump stops
- 3 layer Stainless Steel extended Brake lines
- Made in the USA
Every aspect of clearance has been taken into account with easy to install, bolt on correction brackets for rear control arms, shocks, track bars, and steering stabilizer. 4 Link front requires cutting factory brackets and welding upper front replacements.
This system also out performs most long-arm kits in travel, articulation, clearance and flex with the smoothest and most predictable ride on or off-road at a fraction of the overall modification at a great value.
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: Front and Rear driveshafts required.
Note: Exhaust modification may be required on all 2007-2011 JKs to install this kit to clear the lower front control arm mounts.
Note: This suspension requires an Exhaust Loop Bypass Pipe on 2012+ JK's
Note: We Recommend You Have a Suspension Specialist Align Your Jeep Once a MetalCloak Suspension is Installed.
Note: MetalCloak does not recommend powder coating your True Dual Rate Coils. See instructions for details.
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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VIDEOS
MetalCloak's Jeep JK Wrangler Suspension Systems are the proven leader among production suspension systems.
Who Is MetalCloak?
MetalCloak creates Game-Changing Products for the Off Road Enthusiast.
Duroflex 101
This short video covers what you need to know about the basics of the Duroflex Joint. How it should be used and what to expect when using it.
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 gives better dampening properties over OEM style rubber Clevite Joints and provides more misalignment than “other” inferior Flex Joints.
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.
"DB3" Rear Drop Bracket
Enjoy the confident handling and the smooth, comfortable ride you demand from your JK Wrangler with the DB3.
Outboard Shock Mount
Move the front lower shock mounts away from the Jeep frame rails and rotate the shock eyelet from factory position by 90 degrees allowing it to swing with the axle vs bind on the bushing.
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.
THE TECH
What's In The Kit?
- Front Long Arm Duroflex Control Arms
- Rear Duroflex Control Arms
- Front & Rear True Dual Rate™ Coils
- Drag Link
- Track Bar and Stabilizer Relocation Bracket
- Front & Rear Durotrak™ Track Bars
- Rear Track Bar Bracket
- Front & Rear Adjustable Bump Stops
- Front & Rear Extended Brake Lines
- Front & Rear Sway Bar Links
- Choose Your Shock Option
If you Choose...
- Choose My Own - Get Outboard Shock Mounts, No Shocks
- RockSports - 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 JK Wrangler bolt-on suspension kit. Period.
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.
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!
Lower Front 4-Link Long Arms
The Lower Front Control Arms are precision engineered for our 4-link front suspension. Mounted using a bolt-on bracket, the control arms are designed for lift heights of 4.5 and up, provide amazing flex, the best pinion angle control for taller lifts, and still give incredible handling and the smoothest ride on or off road.
Upper Front 4-Link Long Arms
The Upper Front Control Arms are installed using a welded-on bracket for precise geometry.
Equipped with the Duroflex™ joints at the frame-end, the arms use the stock bushings or the MetaCloak Bushing Upgrade kit (not included) at the axle end.
Threaded 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
- CNC Machined
- 1/4" Wall DOM Steel
- 2.0" OD
- Threaded Forged Ends
- Precision Locking Nut
- Gold Zinc Plated
- Duroflex Joint at Both Ends
- CNC Machined
- 3/16" Wall DOM Steel
- 1.5" OD
- 1/4" Steel Clevis
- Precision Locking Nut
- Gold Zinc Plated
- Threaded Forged Ends
- Duroflex Joint
- CNC Machined
- 1/4" Wall DOM Steel
- 1.625" OD
- Precision Locking Nut
- Gold Zinc Plated
- Duroflex Joint at Both Ends
- Lengthened 5/8" for Best Axle Position
- Threaded Forged Ends
- CNC Formed
- 3/16" Wall DOM Steel
- 1.5" OD
- Precision Locking Nut
- Threaded Forged Ends
- Designed for Oversize Tire Clearance
- Gold Zinc Plated
- Duroflex Joint at Both Ends
- Lengthened for Best Axle Position
Degrees of Articulation
MetalCloak's Duroflex Joint provides 28˚ more articulation and flex than typical control arms! (Learn More About Duroflex Control Arms)
What are True Dual Rate Coils?
MetalCloak JK 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)
True Dual Rate Coils Specification
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.
Not just any track bar bushing...meet the Patented Durotrak
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)
Solid Chromoly front track bar keeps you... well.. on track
Formed for ultimate Up-Travel & Down-Travel the JK Wrangler Front Track Bar gives unprecedented strength, clearance, and improved ride stability.
JK Wrangler Durotrak rear track bar - A first in Hi-Clearance!
The Solid Chromoly track bar is uniquely designed to clear on up-travel as well as downtravel. No other track bar is designed with up-travel in mind.
Rear Bolt on bracket is a key component
The rear relocation and clearance track bar bracket provides what it takes to allow the track bar to keep your axle centered properly under your Jeep.
Rear Control Arm Correction Bracket "DB3" (Optional)
MetalCloak's Patent Pending "DB3" Rear Control Arm Correction Kit is the only solution to lift a Jeep JK Wrangler over 3.5 inches without cutting off the factory brackets and other costly modifications. This product corrects the geometry of the control arms to enable the full use of up and down travel.
What Does It Do?
Adding this system improves rear control arm geometry and adjusts rear axle caster for lifted JK Wranglers. The flatter the control arms are the better; the benefits are immediately felt with a smoother ride and stable handling as the roll center has been adjusted. Braking performance also improves maximizing safety along with the comfort and performance of your Jeep JK Wrangler.
Typical Long Arm Vs DB3 Drop Bracket At Ride Height
The DB3 provides better control arm geometry than a any rear long arm available and is tucked close to the rear tire to give you an advantage in approach angle over rear long arm set ups.
Typical Long Arm Vs DB3 Drop Bracket At Full Droop
When articulated, rear long arms can drag and catch on obstacles that can get you stuck; eliminate this problem with the DB3 and get even better control arm geometry.
Drag Link With Greaseable 1-Ton Ends
High misalignment rod ends, double adjustable, 1.375 OD, .375 wall DOM, and clears aftermarket diff covers. (Learn More About Hi Steer Kit)
Dog Leg Tie Rod Ends
Anti Flop Feature - Precision range of movement
Massive 1-Ton Rod Ends - Provides additional strength
JK Specific OE Bolt Taper - Secure mount
Anti Flop Feature
Full side to side range of motion ensures bind free steering when pushing the extremes of your Jeeps travel and articulation, while a limited "front to back" range of movement is built into the rod-end and eliminates the possibility of the offset to allow the rod end to "flop".
Track Bar and Stabilizer Relocation Bracket
Rear Coil Alignment Retainers
This system also features a retainer feature that ensures that your coil spring stays seated in the coil bucket when at the extremes of articulation and prevents rattling in the coil bucket. (Learn More About Rear Coil Retainers)
Stop The Guess Work. Bump It Up!
- Adjust from 1" - 4" Without Removing Coils
- Perfect Height Regardless of Tire Size
- Thermoset Elastomer Dampens Impact
- Additional Pads Available on Request
Rear Adjustable Bump Stops!
Designed specifically for the JK Wrangler, the system comes with 4 Rectangular Pucks, allowing for easy adjustment between 1" - 4". (Learn More About Rear Adjustable Bump Stops)
JK Wrangler Replacement Brake Lines, 24.5"
From the Teflon Inner Core, to the Stainless Steel Braid and Poly Safety Coat, the MetalCloak replacement Brake Lines are the best available on the market today.
Longer than typical brake lines of similar lift heights because of our additional clearance and travel. (Learn More About Replacement Brake Lines)
Outboard Shock Mount
- 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.
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.
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)
The RockSport RED Long Travel 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 LT 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 RED Shocks Front / Rear)
RockSport RED Front LT Shock Length:
- Extended Length: 29.7"
- Collapsed Length: 17.3"
- Extended Length: 28.0"
- Collapsed Length: 16.3"
TECHNICAL SPECIFICATIONS
| Items | Details |
|---|---|
| Compatibility | 2007 - 2018 Jeep JK Wrangler & Wrangler Unlimited |
| Long Arm Control Arms | 2.0" .25" DOM Steel Tubing |
| 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 |
| Coils | High Tensile Chrome Steel |
| Track Bar | 4130 Solid Chromoly |
| Durotrack Bushing | Proprietary Vulcanized Elastomer |
| Track Bar Bracket | 3/16" Hot Rolled Steel |
| DB3 Rear Drop Bracket | 3/16" Hot Rolled Steel |
| Drag Link | 1.375OD .375 Wall DOM |
| Drag Link Ends | Serviceable |
| Length | 40 1/4" |
| Flip Bracket | 3/16" Hot Rolled Steel |
| Rear Coil Correction Bracket | 3/16" Hot Rolled Steel |
| Coil Isolators | Thermoset Elastomer |
| Front & Rear Adjustable Bump Stops | Thermoset Elastomer |
| Brake Lines | Braided Stainless Hose |
| Shock Mounts | 3/16" Hot Rolled Steel |
| 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."
Exhaust Modification: Exhaust modification may be required on all 2007-2011 JKs to install this kit to clear the lower front control arm mounts.
Exhaust Loop: This suspension requires an Exhaust Loop Bypass Pipe on 2012+ JK Wranglers.
Shock Options: 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 or not they compliment our Game-Changer system or suppress its performance.
Driveshafts: Due to the long-travel MetalCloak suspensions provide, factory drive shafts will contact OEM components and wear quickly when at the extremes of articulation. Aftermarket front and rear driveshafts will be needed.
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 | Some Welding |
| Time to Install | 24 Hours |
| Installation Instructions | Click Here to see a full list of MetalCloak Installation Instructions. |