MetalCloak JL Wrangler 3.5" Game-Changer Long-Arm Four-Link System

A complete long-arm 4-link suspension system designed for Jeep JL. This system delivers maximum control off-road, improved suspension geometry, and on-road comfort. It is a fully bolt-on kit — no welding required, making installation easier and safer without compromising the frame structure.

Key Features & Components

• Front long-arm 4-link control arms made of 2.0″ DOM steel tubing with ¼″ wall thickness, equipped with forged threaded ends for superior strength.
• Upper front arms made of 1.25″ DOM with 3/16″ wall, bent for optimal clearance during full suspension articulation.
• Duroflex™ bushings reinforced with Kevlar®, offering unmatched durability, vibration dampening, and self-centering performance compared to standard rubber bushings.
• Bolt-on front mounts – no welding required.
• Rear suspension available in two configurations:
  • DB3 Mid Arm – improves geometry without cutting or removing factory brackets.
  • Full Rear Long Arm – requires removal of OEM mounts but provides the most stable wheelbase across the full range of articulation.
• Heavy-duty replacement crossmember (3/16″ steel), adding frame rigidity and serving as the mounting base for the long arms.
• True Dual Rate™ Coil Springs – engineered for both road comfort and off-road performance.
• Custom coil isolators – replacing OEM plastic isolators, improving spring stability and reducing coil sway.
• Chromoly 4130 adjustable track bar with Durotrak™ bushings for reduced noise, vibration, and improved steering precision.
• Adjustable bump stops made of elastomer, settable between 1"–4" without removing the coils.
• Multiple shock options:
  • MetalCloak 6Pak – extreme travel performance.
  • RockSport – balanced performance tuned for True Dual Rate springs.
  • Fox shocks – premium external reservoir options for 3.5″–5.5″ lifts.
• All steel components finished with gold zinc plating for corrosion resistance and premium looks.

Benefits

• Enhanced stability and axle control during extreme suspension articulation.
• Eliminates bump steer and maintains proper geometry even with high lifts.
• Improved on-road handling thanks to Duroflex and Durotrak bushing technology.
• Increased durability and longer lifespan compared to traditional systems.
• Bolt-on installation – faster setup without altering frame integrity.
• Fully customizable – choose the shock option that best suits your driving style (daily, off-road, or extreme).
• Durable corrosion-resistant finish.

Installation Notes

• Extended suspension travel may require upgraded driveshafts for proper operation.
• Full rear long-arm configuration requires removal of OEM brackets and cutting the frame.
• A professional alignment is required after installation.
• Powder coating the True Dual Rate springs is not recommended, as it may reduce their lifespan.