The Bolt-On 4-Link Front System by MetalCloak is an advanced suspension upgrade designed for the Jeep JL Wrangler and JT Gladiator. It replaces the factory short-arm setup with a long-arm 4-link system, delivering superior stability, consistent wheelbase, and proper pinion angle throughout the suspension cycle.
The kit includes everything needed for installation: upper and lower control arms, frame brackets, a heavy-duty crossmember, and all necessary hardware.
Key Features
- Upper Long Arms: 1.25″ DOM tubing with 3/16″ wall thickness, both ends equipped with MetalCloak Duroflex™ joints.
- Lower Long Arms: 2.0″ DOM tubing with 1/4″ wall thickness, engineered for extreme durability under off-road loads.
- Heavy-Duty Crossmember: 3/16″ steel construction, strengthens the chassis and mounting points.
- Frame Brackets: 1/4″ steel, fully welded, finished with a corrosion-resistant gold zinc coating.
- Duroflex™ Joints: Exclusive MetalCloak design with Kevlar-reinforced elastomer, offering greater misalignment, reduced vibration, and extended service life compared to standard rubber bushings.
- Complete Kit: Includes all required hardware, bushings, and fasteners.
- Made in the USA: 100% engineered and manufactured in the United States.
Benefits
- Improved stability and handling – longer control arms optimize suspension geometry for predictable on- and off-road performance.
- Maintains proper pinion angle – reduces driveline vibrations and protects drivetrain components.
- Increased suspension articulation – Duroflex joints allow greater misalignment for maximum traction in rough terrain.
- Strength and durability – DOM steel construction, reinforced brackets, and heavy-duty crossmember withstand extreme off-road use.
- Complete solution – everything required for installation is included in the package.
Installation Notes
- Factory control arm mounts must be removed before installation.
- Estimated install time: 10–12 hours.
- A professional wheel alignment is recommended after installation.
- Sold as a complete kit — partial returns are not accepted.
Technical Specifications
| Component | Specification |
|---|
| Upper control arms | 1.25″ DOM, 3/16″ wall, Duroflex joints |
| Lower control arms | 2.0″ DOM, 1/4″ wall, Duroflex joints |
| Frame brackets | 1/4″ steel, fully welded, gold zinc coating |
| Crossmember | 3/16″ steel |
| Joints | Duroflex™, Kevlar-reinforced elastomer |
| Finish | Gold zinc plating |
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