Lock-N-Load Replacement Upper Arm for Radius Suspension, Ram 2500 ('14 - Current)

The Patented MetalCloak Lock-n-Load™ Upper Control Arm for the RAM Game Changer Radius Arm Suspension (metalcloakpatents.com) is precision engineered to solve a common problem with radius arm suspensions: Bind

Features Include:
  • Bolt On Installation
  • Eliminates Radius Arm Bind
  • Dual-Purpose Control Arm
  • "Lock It" for Daily Driving
  • "Load It" for Off-Road Articulation
  • Built with Duroflex™ Joint with Kevlar
  • Threaded Forged Adjustable End
  • Gold Zinc Plated for Protection Against the Elements
  • Made in the USA
Remove bind in Radius Arm suspension and add increased axle articulation with [click for more...] the Lock-N-Load control arm. Allows up to 1.5 of movement under extreme forces that allow the axle to rotate forward or backward allowing the suspension to really flex. Removes strain on bushings and brackets and provides the safety of 4 attachment points to your front axle without loosing any of the flex. Lock it for street use to stiffen up the handling and unlock it for increased articulation.

Fitted with a Duroflex™ Joint; the only vulcanized elastomer, self-centering joint enhanced with DuPont™ Kevlar® fiber – it provides incredible durability with more misalignment in the control arm and the best vibration dampening available. Exclusive to MetalCloak (see detailed info in the main body).

All parts are treated with Gold Zinc Chromate for the ultimate in defense against the elements.

Note: MetalCloak recommends you have a suspension specialist align your truck after installing any suspension components.

[click for less...]

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MetalCloak's Jeep Ram Suspension.

Who Is MetalCloak?

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


"Typical" Radius Arm systems inherently bind causing premature bushing wear and excessive stress on bracketry. The Lock-N-Load solves that problem.

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.




What Are The Applications For The Lock-N-Load?

The Lock-N-Load is designed to ONLY work the front of a linked radius arm suspension.

The Lock-N-Load ONLY replaces the Passenger side upper control arm (your current driver side upper control arm remains in place).

The upper control arm must have a joint that connects at the lower control arm and a clevis that connects at the axle end.

Lock-N-Load Radius Arm

How Does The Lock-N-Load Work?

The Lock-N-Load performs as a standard "solid control arm" when locked; when unlocked "or loaded" it allows for the axle to roll forward or backward without reliving stress on the bushings and brackets that will provide a longer service life AND directly equate to better articulation that keeps tires on the ground.

The lock-n-load is designed to lock or unlock the spring without changing the length of the control arm; the unique and patented design provides stability on the road when locked out and increased suspension mobility when off road.

Ram Lock-N-Load Compression


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.

The Duroflex Joint Provides The Best Ride. Period.

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.

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...

  • Incredible Misalignment
  • Self centering Control Arms

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

Ram Lock-N-Load (SKU #7075)
  • CNC Machined
  • Precision Locking Nut
  • Forged Threaded End
  • Gold Zinc Plated
  • Duroflex Joint
Lock-N-Load Control Arm Specs

What's In The Kit?

Whats in the Kit
  • Lock-N-Load
  • All Required Hardware


Items Details
Compatibility 2014 - Current Ram 2500
Lock-N-Load 3.0" x .120 Wall DOM Steel Tubing
Duroflex Joint Proprietary Vulcanized Elastomer made with DuPont™ Kevlar® fiber
Steel Coating Gold Zinc


Installation Difficulty Easy
Body Modification None
Time to Install 1 - 2 Hours
Installation Instructions Click Here to see a full list of MetalCloak Installation Instructions.

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