Fabtech Trail 4WD 4-Door Suspension Kit

2018–2021 Jeep Wrangler 6-Cylinder 4-Door Models

K4117DL

Overview:

The Fabtech 3-inch Trail 4WD Suspension Kit is engineered specifically for Jeep Wrangler models from 2018 to 2021 with 6-cylinder engines and 4-door configurations. Designed to elevate off-road capability, this complete short arm suspension system enhances performance across a wide range of terrains, including rock crawling, aggressive trail riding, and extended overland expeditions. On-road, the kit delivers a compliant and comfortable ride thanks to its dual rate coil springs and carefully tuned shock valving, making it an ideal upgrade for enthusiasts seeking both daily drivability and rugged off-road performance.

Fabtech’s Trail system is built to maintain factory control arm mounting points, simplifying installation while providing robust durability and improved suspension travel. This kit is perfect for Jeep owners who demand a reliable suspension that balances comfort, articulation, and strength for serious off-road adventures.

Key Features:

This suspension kit incorporates advanced engineering and premium components to optimize your Jeep Wrangler’s off-road and on-road performance:

• Complete short arm suspension system utilizing factory control arm mounts for straightforward installation
• Heavy-duty link arms constructed from 1.75" OD, 0.250" 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 increase suspension travel
• Dual-stage spring design: soft initial rate for comfort and extended travel, with a firmer secondary rate for payload support and high-speed impact absorption
• Draglink Flip System and heavy-duty track bar bracket included to correct steering geometry and prevent draglink binding
• Maintains factory draglink angle to pitman arm, reducing side load on steering box and extending its lifespan
• Heavy-duty rear track bar bracket with side support to maintain factory roll center and properly center the axle
• Front and rear bump stop extensions to protect suspension components from over-travel

Construction & Design:

Fabtech’s Trail Suspension Kit is engineered with strength and longevity in mind. The heavy-duty link arms are fabricated from thick-walled steel tubing, providing exceptional resistance to bending and deformation under extreme off-road conditions. The use of large polyurethane bushings combined with the innovative 5 Ton Joint ensures a quiet, durable connection that withstands harsh terrain and heavy loads.

The dual rate coil springs are specifically tuned for the Jeep Wrangler JL chassis, with corner-specific calibration to keep the vehicle balanced and level. This design allows for a smooth ride during normal driving while providing the necessary stiffness to handle heavy payloads and aggressive off-road impacts.

Installation & Fitment:

The Fabtech Trail Suspension Kit is designed for direct bolt-on installation using the factory control arm mounts, minimizing the need for complex modifications. It fits 2018 to 2021 Jeep Wrangler 4-door models equipped with 6-cylinder engines. Minor trimming or cutting may be required depending on tire and wheel size, especially when using larger tires or high clearance fenders.

For heavy off-road use, upgraded driveshafts are recommended (front FTS94057 and rear FTS94065) to complement the increased suspension travel and durability. This kit supports a range of tire sizes up to 37" with appropriate wheel offsets and minor trimming or cutting depending on fender configuration.

What's Included:

• 3-inch Trail short arm suspension components
• Heavy-duty front and rear link arms with polyurethane bushings and 5 Ton Joints
• Corner-specific long travel dual rate coil springs
• Draglink Flip System
• 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 ideal for Jeep Wrangler owners who demand enhanced off-road capability without sacrificing on-road comfort. It suits enthusiasts engaged in rock crawling, aggressive trail riding, and overland expeditions who require increased suspension travel, improved articulation, and reliable durability. Additionally, it is well-suited for those upgrading to larger tires and wheels while maintaining proper steering geometry and vehicle balance.

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.