Jeep JK Wrangler 4.5" 4-Link, Bolt-On Long Arm Suspension & Lift Kit - 4 Door Unlimited

Fitment: 4 Door Unlimited

The Jeep JK Wrangler 4-Link Long Arm Suspension System integrates advanced technology with bolt-on long arm correction brackets, optimizing control arm geometry for superior performance at this lift height. (metalcloakpatents.com).

Features

• Front Weld on Upper Control Arm Brackets
• Rear Bolt On Long Arm Brackets
• 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
• Front Coil Isolators
• 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

The Weld-On Front 4-Link Long Arm System delivers precise control over pinion angles in extreme conditions and is designed to complement the geometry of our rear bolt-on long arms. To accommodate the front long arms, factory brackets must be removed. These long arms are constructed from robust 2.0 DOM .25” (1/4”) wall steel, built to withstand trail abuse, and feature forged threaded ends for maximum durability.

The upper front arms, made from 1.25” DOM x 3/16” tubing, include forged ends for enhanced strength and are fully adjustable in length. Both front and rear control arms incorporate our patented Duroflex™ bushings, ensuring bind-free, maintenance-free articulation.

The rear long arms require the removal of factory rear control arm brackets but offer the best geometry MetalCloak has engineered. This optimized design enhances acceleration response, minimizes wheelbase changes, and delivers superior handling at high speeds.

The lower rear long arms, crafted from thick 2.0 DOM .25” (1/4”) wall steel, provide exceptional strength and durability with forged threaded ends. The upper rear control arms, made from 1.5” DOM .1875” (3/16”) tubing, are specially formed for maximum clearance during suspension travel.

For easy installation, the 100% bolt-on rear long-arm brackets are constructed from fully welded ¼” steel plate with angled surfaces to help glide over obstacles effortlessly.

This system combines cutting-edge technologies, including True Dual Rate™ Coils, revolutionary DuPont™ Kevlar® fiber-enhanced Duroflex™ Joints, and two-piece Durotrak™ bushing-equipped track bars, resulting in an unmatched off-road experience.

Designed for straightforward installation, this complete long-arm system includes everything needed: front and rear long arms, shocks, track bars, a steering stabilizer, brake lines, bump stops, and all required hardware.

With superior travel, articulation, clearance, and flex, this system delivers a smooth, predictable ride both on and off-road—all at a fraction of the modifications required by other long-arm kits, offering outstanding value.

Note: All 2012+ JK Wranglers will require either exhaust spacers or a driveshaft. Please see what’s this on front driveshaft clearance option.

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: 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.

Specifications

• Compatibility: 2007 - 2018 Jeep JK Wrangler & Wrangler Unlimited
• Long Arm Control Arms: 2.0" .25" DOM Steel Tubing 1 1/2" .187 DOM Steel Tubing
• Rear Long Arm Bracket: 1/4" Hot Rolled Steel
• Duroflex Joint: Proprietary Vulcanized Elastomer made with DuPont™ Kevlar® fiber
• Coils: High Tensile Chrome Steel
• Track Bar: 4130 Solid Chromoly
• Durotrak Bushing: Proprietary Vulcanized Elastomer
• Track Bar Bracket: 3/16" Hot Rolled Steel
• Shock Mounts: 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
• Steel Coating: Gold Zinc

Installation

• Installation Difficulty: Difficult
• Body Modification: Cutting & Welding
• Time to Install: 24 Hours

Important Notes

• sectionHeaderTitle">IMPORTANT NOTES
• Exhaust Modification: All 2012+ JK Wranglers will require either exhaust spacers or a driveshaft. Please see what’s this on front driveshaft clearance option.
• 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 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.
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MetalCloak part #: A1645