Fabtech Long Arm Suspension System

2018–2021 Jeep Wrangler Unlimited Rubicon, Sahara, Sport, Sport S 4-Door

K4132DL

Overview:

The Fabtech 3-inch Crawler Long Arm Suspension System with Dirt Logic 2.25 Resi Shocks is engineered specifically for 2018 to 2021 Jeep Wrangler Unlimited 4-door models. Designed for serious off-road enthusiasts, this system delivers superior handling, enhanced ground clearance, and durable construction right out of the box. It eliminates the need for ongoing fabrication or maintenance, providing a reliable and high-performance upgrade for Jeep owners seeking improved suspension geometry and rugged capability.

Fabtech’s Crawler system is built to meet the demands of experienced drivers who require a suspension that performs flawlessly on challenging terrain while maintaining smooth, quiet operation on the street. This kit is ideal for those who want a robust, long-lasting suspension solution that enhances both off-road performance and daily drivability.

Key Features:

This comprehensive suspension upgrade includes:

• Front and rear lower 5 Ton link arms constructed from 2" OD, .313 thick wall tubing for maximum strength and durability
• Full-width front crossmember that mounts link arms at optimal geometry and reinforces the JL frame for off-road abuse
• Rear lower link arms attach to new frame mounts positioned for increased ground clearance and improved approach angles
• Fabtech’s legendary 5 Ton joints with lifetime guarantee, providing smooth, quiet operation and exceptional off-road durability
• Front and rear corner-specific dual rate coil springs for balanced ride quality and articulation
• Front and rear Dirt Logic 2.25 Resi shocks tuned for performance and comfort
• Heavy-duty flipped draglink and front shock mount brackets for enhanced steering response and durability
• Front and rear sway bar links, bump stop extensions, brake line drops, and track bar brackets for a complete suspension solution

Construction & Design:

Fabtech’s Crawler suspension system is engineered with precision and built from premium materials to withstand the rigors of off-road driving. The massive 2-inch diameter lower link arms with thick wall tubing ensure resistance to bending and deformation under heavy loads. The full-width front crossmember not only secures the link arms at the ideal geometry but also adds critical reinforcement to the lighter JL frame, enhancing chassis rigidity and durability.

The system’s geometry is carefully optimized to provide superior handling throughout the suspension travel range, delivering improved control and stability on rough terrain. Fabtech’s 5 Ton joints are designed for longevity and smooth operation, backed by a lifetime warranty, making them a standout feature for off-road enthusiasts who demand reliability.

Installation & Fitment:

This suspension kit is designed exclusively for 2018 to 2021 Jeep Wrangler Unlimited 4-door models, including Rubicon, Sahara, Sport, and Sport S trims. Installation requires welding and some exhaust modifications on all 2018 Jeep JL Wranglers. For exhaust modification, the use of a loop delete pipe (AFE P/N 48-48024) is recommended. Additionally, upgraded front and rear driveshafts (FTS94057 front, FTS94065 rear) are required for proper fitment and performance.

Minor trimming or cutting may be necessary depending on tire and wheel combinations, especially when using high clearance fenders or larger tires up to 37 inches. This system supports a variety of tire sizes and wheel offsets, allowing customization to suit different off-road setups.

What's Included:

• Front and rear lower 5 Ton link arms
• Full-width front link arm crossmember with skid plate
• Rear lower link arm frame mounts
• Front and rear corner-specific dual rate coil springs
• Front and rear bump stop extensions
• Front and rear sway bar links
• Front and rear brake line drops
• Front and rear track bar brackets
• Heavy-duty flipped draglink
• Front shock mount brackets
• Front and rear Dirt Logic 2.25 Resi shocks

Ideal For:

This Fabtech Crawler suspension system is perfect for Jeep Wrangler owners who demand a durable, high-performance long arm suspension that enhances off-road capability without sacrificing street comfort. It is ideal for serious off-road enthusiasts, trail riders, and anyone looking to upgrade their JL Wrangler’s suspension for improved ground clearance, handling, and reliability on rugged terrain.

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.