"DB3" Rear Control Arm Bolt-On System, JL Wrangler | JK Wrangler

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MetalCloak JL Wrangler & JK DB3 Rear Control Arm Add On System represents 2 patented innovations in suspension components. Our Patented Duroflex Joints are designed to stay centered and aligned to the frame and axle for the best, long term, performance & the patented "DB3" brackets correct rear control arm geometry.

Features Include:
  • Application fits both JK or JL Wranglers
  • Rear Upper 1 1/2" .187 DOM Steel Tubing
  • Rear Lower 1 5/8" x .25 DOM Steel Tubing
  • 3/16" Steel Rear Drop Bracket
  • Adjustable Forged Threaded Ends
  • High Clearance Bends
  • Duroflex™ Joints Enhanced with Kevlar
  • Vibration Dampening & Self Centering (best ride quality)
  • 68° of Maximum Articulation (typical arms only 40°)
  • Maintenance Free and Easily Rebuildable
  • Gold Zinc Plated for Protection Against the Elements
  • Designed for Maximum UP and DOWN Travel
  • Drop Bracket is Fully Welded
  • Angled for Approach & Departure
  • Trail-Tested Built-In Skid Plate
  • Gold Zinc Finish
  • Made in the USA
Strong DOM tubing is carefully crafted for tire clearance and durability. The adjustable threaded rod ends are [click for more...] Forged that give a 37% higher fatigue strength over inferior cast parts, this EXTRA rock bashing strength will hold up to whatever you throw at em.

Fitted with Duroflex™ Joints, 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).

Our simple to install, Bolt-On bracket re-positions the rear control arms to operate within a corrected radius. This system drastically reduces the feel of bump-steer/axle steer on lifted Jeeps and provides handling characteristics comparable if not better than a stock height Jeep.

Feel the improvement in acceleration, braking, climbing, and steering with the DB3. The DB3 is only available from MetalCloak.

Note: The DB3 is not compatible with the 392 JL Wrangler.

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MetalCloak's Jeep JK Wrangler Suspension Components are second to none.

Who Is MetalCloak?

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

Rear Duroflex Control Arms

MetalCloak JL Wrangler & JK Wrangler Jeep Duroflex™ Control Arms represent one of our best innovations in suspension components.

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.

Introducing the DB3

The "DB3" Rear Control Arm Correction Bracket is the ONLY bolt-on solution to correct rear control arm geometry

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 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.

The Duroflex Joint Provides The Best Ride. Period.

High Vibration Dampening & Self Centering...

Made of a Proprietary Elastomer Compound, the High Vibration Dampening and Self-Centering characteristics of the Duroflex Joint means you will always get...

  • The best ride quality
  • No binding of your control arms.
  • None of the micro-wear that DESTROYS Flex Joints
Duroflex Joint Vibration Dampening
Duroflex High Misalignment

High Misalignment...

By adapting the High Transverse Flex characteristics of a typical Flex Joint, the Duroflex Joint gives you...

  • Over 34° of Misalignment
  • Over 68° per Control Arm

Absorbs Micro-Movements...

Because the Duroflex Bushing absorbs the millions of Rotational Micro-Movements found in your daily driving, you get...

  • Improved Ride Quality
  • None of the micro-wear that DESTROYS Flex Joints
Duroflex Mirco Movement
Duroflex High Misalignment

True Bearing Surface...

The outer surface of the Duroflex Bushing acts as a bearing, breaking free when called for, giving you...

  • Maximum Rotation & Articulation
  • No "Binding Up" of the Control Arms

Low Maintenance & Rebuildable...

Unlike typical Flex Joints, the Duroflex does not require replacing key parts every year like others...

But, when you do need to rebuild it, it is MetalCloak Easy!

Just pull out the Duroflex Bushing, clean it up, add some new Teflon impregnated, synthetic silicone grease. Reassemble.


Duroflex Rebuildable
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.

At MetalCloak We Take The Care To Build It Right...

Duroflex Control Arms Alignment

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

Control Arm Specs

JK Wrangler Lower Rear (SKU #7003)
  • 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
7003 Specifications

JK Wrangler Upper Rear (SKU #7004)
  • 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
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

Rear Control Arm Correction Bracket "DB3"

Control Arm Pro'lignment Kit

Green line shows DB3 and how it tucks behind wheel for optimal approach.

Red line shows a "typical" Long arm hang up MUCH farther forward increasing the chance for hang up.

The DB3 provides superior control arm angles for a better ride AND provides better approach angles over a rear long arm all in a simple bolt on application.

Correction Bracket Features

This product adjust the roll center of your Jeep, and corrects the geometry of the control arms enabling the full use of up and down travel.

The entire bracket assembly is welded together for incredible strength, has built in approach skids, and all surfaces are angled to keep from catching on obstacles. Installs into factory locations - bolting securely in place.

MetalCloak DB3

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.

Control Arm Pro'lignment Kit Correction

What's In The Kit?

  • DB3 Correction Bracket
  • Rear Upper Control Arms
  • Rear Lower Control Arms
  • All Required Hardware
Whats in the Kit


Items Details
Compatibility 2007 - 2018 JK Wrangler | 2018 + JL Wrangler
Control Arms 1 5/8" x .25 DOM Steel Tubing
1 1/2" .187 DOM Steel Tubing
Duroflex Joint Proprietary Vulcanized Elastomer made with DuPont™ Kevlar® fiber
Drop Bracket 3/16" Steel Sheet
Steel Coating Gold Zinc


392 JL Wrangler: The DB3 is not compatible with the 392 JL Wrangler.


Installation Difficulty Moderate
Body Modification None
Time to Install 4 - 6 Hours
Installation Instructions Click Here to see a full list of MetalCloak Installation Instructions.

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