Fabtech Long Arm Suspension System

2018–2021 Jeep Wrangler Rubicon, Sport, Sport S, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited Sport S

K4131M

Overview:

The Fabtech 3-inch Crawler Long Arm Suspension System with Stealth is engineered specifically for 4-door Jeep Wrangler models from 2018 to 2021. Designed for serious off-road enthusiasts and experienced drivers, this system delivers superior handling, durability, and ground clearance without the need for ongoing fabrication or maintenance. It offers a ready-to-install solution that enhances your Jeep’s suspension geometry and off-road capability right out of the box.

Fabtech’s Crawler system is ideal for those who demand a robust suspension upgrade that maintains excellent street manners while conquering challenging terrain. Its precision-engineered components ensure consistent performance and reliability under the toughest conditions.

Key Features:

This long arm suspension system incorporates advanced design elements and premium materials to optimize off-road performance and vehicle control:

• 3-inch lift height tailored for 4-door Jeep Wrangler JL models (2018–2021)
• Full-width front crossmember spanning frame rails for superior strength and correct link arm geometry
• 5 Ton Link Arms constructed from 2" OD, .313 wall thickness tubing, engineered to resist bending
• Lifetime guaranteed Fabtech 5 Ton joints providing smooth, quiet operation on and off-road
• Rear link arms mounted to new frame side mounts for increased ground clearance and improved approach angles
• Compatibility with tire sizes up to 37x12.5R20 with appropriate fender options and minor trimming or cutting
• Designed to work with standard and high clearance fender configurations
• Includes Stealth components for enhanced suspension articulation and durability
• Requires exhaust modification or optional AFE loop delete pipe for proper fitment
• Driveshaft upgrades recommended for front and rear on 4-door models to maintain driveline integrity

Construction & Design:

Fabtech’s Crawler suspension system is built with high-strength materials and precision engineering to withstand the rigors of off-road driving. The massive lower link arms use thick-walled tubing to ensure rigidity and resistance to bending under heavy loads. The full-width front crossmember not only secures the link arms at optimal geometry but also reinforces the lighter JL frame, enhancing durability during aggressive trail use.

The system’s link arms feature Fabtech’s legendary 5 Ton joints, renowned for their longevity and smooth operation. These joints are designed to endure harsh off-road conditions without wearing out, backed by a lifetime guarantee. Rear link arms are strategically mounted to new frame side mounts, maximizing ground clearance and approach angles for improved obstacle negotiation.

Installation & Fitment:

Installation of the Fabtech 3-inch Crawler system requires welding and some exhaust modifications on all 2018 Jeep JL Wranglers. The kit is designed exclusively for 4-door models and necessitates upgraded driveshafts for both front and rear to ensure proper driveline function. Minor trimming or cutting of fenders may be required depending on tire and wheel size, especially when using larger 37-inch tires with high clearance fenders.

Fabtech provides detailed instructions to guide professional installers through the process, ensuring the suspension system is mounted with correct geometry for optimal performance and safety.

What's Included:

• Front and rear 5 Ton Link Arms with lifetime guaranteed joints
• Full-width front crossmember for link arm mounting and frame reinforcement
• New rear frame mounts for link arm attachment
• Stealth components integrated into the suspension system
• Hardware and brackets necessary for installation

Ideal For:

This suspension system is perfect for Jeep Wrangler owners who seek a reliable, high-performance long arm lift kit that enhances off-road capability without compromising daily drivability. It suits enthusiasts who frequently tackle challenging trails, rock crawling, and overlanding, and who want a durable, maintenance-free suspension upgrade engineered specifically for the JL platform.

Fabtech is an off-road suspension leader producing lift kits, shocks, and related components to increase ride height, clear larger tires, and improve capability. Their systems are engineered for specific trucks and SUVs, blending on-road drivability with the added travel and strength enthusiasts want for trails, desert runs, and overland builds.