Ram 2500 4.5" Lock-N-Load Radius Suspension & Lift Kit, [Diesel 2019 +]

The RAM Lock-N-Load™ Radius Arm Suspension is the only Long Arm system that provides bind-free front radius arms, along with True Dual-Rate™ coils and Kevlar infused Duroflex™ joints for the best performance on or off-road, work or play.

Features Include:
  • 4.5" True Dual-Rate Coils
  • Choice of 4.5" Rear True Dual-Rate Coils or Max Payload Option
  • Polyurethane Upper Spring Capture/Isolators
  • Strong 3/16" Front Lower Coil-Correct Captures
  • HUGE 3" Kevlar Infused Duroflex Joints
  • Oversized Forged/Adjustable Ends
  • Choice of Lock-N-Load or Radius Arm
  • 2" OD DOM Lower Gusseted Front Radius Arms
  • 2" OD DOM Adjustable Upper and Lower Rear Control Arms
  • 1/4" Thick Plate Steel Front Track Bar Drop Bracket
  • 1/4" Thick Plate Steel Rear Track Bar Bracket
  • Geometry Correct Forged Pitman Arm
  • Front and Rear Bolt-On Bump Stop Towers
The most Technologically advanced Suspension system available for the RAM Truck. Patented and proven [click for more...] technology (mcpatents.com) ONLY available from MetalCloak makes this the Gold Standard for RAM Truck owners.

True Dual-Rate Coils with front anti-bow coils are supported with massive lower coil-correct captures with additional polyurethane upper coil capture/isolators for the smoothest ride available.

Massive, Kevlar infused Duroflex joints are housed in Adjustable Forged Ends that thread into strong 2in OD DOM Control arms for amazing flex and NVH (noise/vibration/harshness) capabilities along with maintenance-free durability you demand for your truck.

You have a choice in coils in the rear depending on what you want your truck to do. Choose either the Maximum Articulation True Dual Rate Lift Coils for the best off-road flex OR reuse the factory rear coils with the provided MetalCloak lift structure to match the height to the front and still retain the factory towing specs for hauling.

The MetalCloak exclusive Ram Lock-N-Load Upper control arm allows for stability on the road for daily driving and unleashes the flex of the suspension when off-road situations require maximum tire contact.

Front and Rear Track bar brackets are made of thick 1/4in steel plate for a "no compromise" mount that also adds additional support mounts over factory for even more increased strength.

Geometry corrected, forged pitman arm adds strength and matches the geometry of the track bar to the drag link for effortless, worry-free steering control.

Front and Rear bump stops towers reposition the factory parts to function correctly for the added lift height.

This is a complete Game-Changing suspension system that will provide a smoother ride on the road while maximizing performance off--road. Work or play enjoy the Gold-Standard the MetalCloak Ram suspension provides.

Note: The MetalCloak Ram Suspension System is for Ram 2500 Diesel Trucks.

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 Ram 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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Availability
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Special Sales Price:

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Customize Ram 2500 4.5" Lock-N-Load Radius Suspension & Lift Kit, [Diesel 2019 +]
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VIDEOS

MetalCloak's Ram Suspension Systems are the proven leader among production suspension systems.

Who Is MetalCloak?

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

Ram Suspension

The Ram Truck platform is one of the most capable-sized trucks in America, and now your Ram could be made even better...

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.

Lock-N-Load

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

Coil Springs 101

This short video covers all you need to know about the basics of how typical Coil Springs work compared to MetalCloak's True Dual Rate Coils.

THE TECH



A close-up view of a kit's contents, showcasing various hardware and items neatly organized for easy access and use.

So what's in the kit?

  • Front Lower Long Arms
  • Lock-N-Load or Radius Arm
  • Front Upper Radius Control Arm
  • Rear Duroflex Control Arms
  • Front & Rear True Dual Rate™ Coils
  • Front Coil Perches
  • Front Track Bar Bracket
  • Rear Track Bar Bracket
  • Front Bump Stops
  • Rear Bump Stops
  • Front Sway Bar Links
  • Pitman Arm

IT ALL STARTS WITH THE BUSHINGS

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

A graphical comparison of an OEM Clevite plus a typical Flex Joint equaling a MetalCloak Duroflex Joint.

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, Self-Centering, Rebuildable Joint with an OEM quality ride.

The Duroflex Joint Provides The Best Ride. Period.

Black rubber bushing with a metal core.

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.

FULL SIZE Strength

3" Duroflex Joint for the RAM Truck; these joints are HUGE! Take all the benefits of maximum articulation, unlimited rotational range, the best NVH (noise/vibration/harshness) and combine that into a service free bushing infused with Kevlar. These joints are made specifically for FULL SIZE strength.

Two black Duroflex joints for vehicles labeled as 'Jeep' and 'Ram 3Two black Duroflex joints for vehicles labeled as 'Jeep' and 'Ram 3

Lower Front Radius Long Arms

Engineered for ultimate clearance including both Up & Down travel under your Ram.

The beefy Long Arms also aid to the protect the vital components of the under carriage.

Allows maximum up and down wheel travel while keeping the pinion angle in check.

Has unparalleled on-road handling characteristics that some say are unprecedented in a suspension system.

two gold zinc lower front radius arm for the Ram on a white background with logo in the corner

Optional Lock-N-Load

MetalCloak's Lock-N-Load Radius Arm system removes the most common problem that causes more long term damage to bushings and axles... BIND.

The Lock-N-Load extends at full droop, compressing one spring and extending the other.

At full stuff, the Lock-N-Load compresses. There is always compression and resistance.

Gif showing the lock-n-load in action. The body moving back and forth showing the adjustment to unbind the radius arm suspension.

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 eliminating stress on the bushings and brackets providing 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.

3D animation of the locked and loaded positions of the lock-n-load for bind free radius suspension

Control Arm Specs

Ram Lower Front (SKU #8020)
  • CNC Machined
  • 5/16" Wall DOM Steel
  • 2.0" OD
  • Precision Locking Nut
  • Gold Zinc Plated
  • Threaded Forged End
Technical diagram of an adjustable suspension control arm with dimensions and specifications.

Optional Ram Lock-N-Load (SKU #8022)
  • CNC Machined
  • Precision Locking Nut
  • Threaded Forged End
  • Gold Zinc Plated
  • Duroflex Joint
Technical diagram of an adjustable suspension lock-n-load with dimensions and specifications.

Ram Upper Front Radius Arm (SKU #8021)
  • CNC Machined
  • 3/16" Wall DOM Steel
  • 1.5" OD
  • 1/4" Steel Clevis
  • Precision Locking Nut
  • Gold Zinc Plated
  • Duroflex Joint
  • Threaded Forged End
Technical diagram of an adjustable suspension control arm with dimensions and specifications.

Ram Lower Rear (SKU #8023)
  • CNC Machined
  • 5/16" Wall DOM Steel
  • 2.0" OD
  • Threaded Forged End
  • Gold Zinc Plated
  • Duroflex Joint at Both Ends
  • Precision Locking Nut
Technical diagram of an adjustable suspension control arm with dimensions and specifications.

Ram Upper Rear (SKU #8024)
  • CNC Formed
  • 5/16" Wall DOM Steel
  • 2.0" OD
  • Precision Locking Nut
  • Threaded Forged End


  • Designed for Oversize Tire Clearance
  • Gold Zinc Plated
  • Duroflex Joint at Both Ends
  • Lengthened for Best Axle Position
Technical diagram of an adjustable suspension control arm with dimensions and specifications.

What are True Dual Rate Coils?

MetalCloak 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)

Diagram highlighting the suspension coils dual flex rates: extended, compressed, and at ride height with transition point indicated.


Front RAM True Dual-Rate anti-bow springs do not neck down like 'typical coils" and alleviates coil bow as the additional support from the larger diameter coil maintains structure and provides better performance.

Diagram of a front coil spring with specifications like height, wire diameter, and top/bottom coil diameters. Diagram of a rear coil spring with specifications like height, wire diameter, and top/bottom coil diameters.

Front Upper Spring Capture/Isolators

Polyurethane Front Upper Spring Capture/Isolators capture MetalCloak RAM True Dual Rate coils and isolate NVH (noise vibration and harshness) while keeping the coils centered.

Gray front upper pad for a vehicle's suspension system with a label and part number.

Front Lower Coil-Correct Captures

360 rotation renderings of the gold zinc front lower control arm capture perch with the front coil mounted to the perch.

Strong 3/16" .120 wall steel Front Lower Coil-Correct Captures work in conjunction with MetalCloak True Dual-Rate Ram Front coils to center, angle and capture the coil to eliminate coil bow.

Front Track Bar Bracket

Front Track bar bracket is made of thick 1/4" steel plate for a "no compromise" mount that also adds additional support mount at the cross member for increased strength and durability.


Front track bar drop bracket made of CNC formed 1/4" steel for Ram.

Rear Track Bar Bracket

Rear track bar drop bracket 1/4" THICK!!!! captures axle tub for extra strength with additional gussets for max strength: Rear Track bar brackets are made of thick 1/4" steel plate for a "no compromise" mount that also adds additional support mount at the axle tub for even more strength.


Rear Durotrak track bar bracket made of CNC formed 1/4" steel for Ram.

Bump Stop Towers

3/16" hot rolled steel Plate spacer (3" x 3" .188 WALL Steel Tube) Front and Rear bump stops towers reposition the factory parts to function correctly for the added lift height.

Two gold-colored, metal front bump stop blocks on a white background. Two gold-colored, metal rear bump stop blocks on a white background.

Sway Bar Disconnects

When Lifting a Truck the sway bar links also need to increase in length to keep your sway bar adjusted properly. MetalCloak Extended Sway Bar Links bolt directly into the factory locations with no cutting or modification required.

Two metal bars set on a white background, depicting the JL Sway Bar Link Extension Kit that installs without cutting or alterations.

Pitman Arm

A black pitman arm, for a ram, isolated on a white background.

Eliminate bump-steer: Geometry corrected, forged pitman arm adds strength and matches the geometry of the track bar to the drag link for effortless, worry-free steering control.

TECHNICAL SPECIFICATIONS



Items Details
Compatibility 2021 - Current Ram 2500
Long Arm Control Arms 2.0" x .310 Wall DOM Steel Tubing
Optional Lock-N-Load 3.0" x .120 Wall DOM Steel Tubing
Control Arms 1.5" x .187 Wall Dom Steel Tubing
2.0" x .310 Wall DOM Steel Tubing
Duroflex Joint Proprietary Vulcanized Elastomer made with DuPont™ Kevlar® fiber
Coils High Tensile Chrome Steel
Front Coil Pads 90A Polyurethane
Front Coil Perches 4.5" x .120 Wall Steel Tube
3/16" Hot Rolled Steel Plate
Front Track Bar Bracket 1/4" Hot Rolled Steel
Rear Track Bar Bracket 1/4" Hot Rolled Steel
Front Bump Stops 7/64" Hot Rolled Steel Plate
Rear Bump Stops 3" x 3" .188 Wall Steel Tube
Sway Bar Links 1/2"-13 x 12.25" Length
Pitman Arm Steel
Steel Coating Goal Zinc


IMPORTANT NOTES



Diesel: The MetalCloak Ram Suspension System is for Ram 2500 Diesel Trucks.

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 Ram 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 Bolt-On
Time to Install 15 - 18 Hours
Installation Instructions Click Here to see a full list of MetalCloak Installation Instructions.


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