Fabtech 5in Trail 4WD 4-Door Suspension Kit

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

K4140M

Overview:

The Fabtech 5in Trail Suspension Kit is engineered specifically for 2018 to 2021 Jeep Wrangler Unlimited 4-door models, including Rubicon, Sahara, Sport, and Sport S trims. Designed to enhance off-road capability, this complete short arm suspension system delivers a balanced combination of rugged durability and on-road comfort. Whether tackling rock crawling, aggressive trail riding, or extended overland expeditions, this kit provides the suspension travel and articulation needed for demanding terrain while maintaining a compliant ride on pavement.

Fabtech’s Trail system addresses the unique challenges of off-highway use with a focus on longevity, ride quality, and steering geometry correction. It is ideal for Jeep enthusiasts seeking a reliable 5-inch lift that supports larger tires and improved ground clearance without sacrificing drivability or steering precision.

Key Features:

This suspension kit integrates advanced engineering and premium components to optimize performance and durability:

• Complete short arm suspension system using factory control arm mounts for straightforward installation
• Heavy-duty link arms constructed from 1.75-inch outer diameter, 0.250-inch thick wall steel tubing, guaranteed never to bend
• Large polyurethane bushings paired with Fabtech’s patented 5 Ton Joint for enhanced durability and quiet operation
• Corner-specific long travel dual rate coil springs designed to maintain vehicle level and maximize suspension travel
• Dual-stage spring design providing a soft initial ride with progressive support for payload and high-speed impact absorption
• Draglink Flip System and heavy-duty track bar bracket to correct steering geometry and prevent draglink binding during full articulation
• Maintains factory draglink angle to pitman arm, reducing side load on steering box sector shaft and extending steering component life
• Heavy-duty rear track bar bracket with side support to maintain factory roll center and axle alignment
• Front and rear bump stop extensions to protect suspension components from over-travel damage
• Compatible with standard and high clearance fenders, supporting tire sizes up to 40x12.5R20 with minor trimming or cutting as required

Construction & Design:

Fabtech’s 5in Trail Suspension Kit is built with robust materials and precision engineering to withstand the rigors of heavy off-road use. The link arms feature thick-walled steel tubing for exceptional strength and resistance to bending under extreme conditions. Polyurethane bushings and the innovative 5 Ton Joint ensure long-lasting, maintenance-free articulation with reduced noise and vibration.

The dual rate coil springs are specifically tuned for the Jeep JL platform, providing a progressive spring rate that balances comfort and load capacity. The suspension geometry is carefully engineered to maintain factory alignment and steering angles, preserving handling characteristics and component longevity even with the increased ride height.

Installation & Fitment:

This kit is designed for direct bolt-on installation using the Jeep JL’s factory control arm mounts, simplifying the upgrade process. The included draglink flip and track bar brackets restore proper steering geometry, eliminating common issues associated with lifted suspensions such as draglink binding and premature steering box wear.

Minor trimming or cutting of fenders may be required depending on tire and wheel size combinations. Heavy off-road use may necessitate upgraded driveshafts (front FTS94057 and rear FTS94065) for 4-door models. This kit is not compatible with 4XE or Rubicon 392 models.

What's Included:

• Front and rear heavy-duty link arms with polyurethane bushings and 5 Ton Joints
• Corner-specific dual rate coil springs
• Draglink flip kit
• Heavy-duty front and rear track bar brackets
• Front and rear bump stop extensions
• All necessary hardware for installation

Ideal For:

This suspension kit is perfect for Jeep Wrangler JL owners who demand a versatile lift system capable of handling aggressive trail riding, rock crawling, and overland adventures while maintaining excellent on-road comfort. It suits enthusiasts upgrading to larger tires and seeking improved suspension travel without compromising steering reliability or ride quality.

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.