Fabtech Trail II Suspension System with Performance Shocks

2007–2018 Jeep Wrangler JK / Wrangler Unlimited

K4052

Overview:

The Fabtech 3-inch Trail II Suspension System with Performance Shocks is engineered specifically for Jeep Wrangler JK models from 2007 through 2018, including both 2-door and 4-door Unlimited variants. Designed for serious off-road enthusiasts, this suspension kit enhances your Jeep’s capability on aggressive trails, rock crawling, and overland expeditions while maintaining a smooth and quiet ride on the highway. By replacing the factory lower link arms with heavy-duty short arms and incorporating performance shocks, this system delivers improved articulation, durability, and ride quality for all types of off-highway travel.

Fabtech’s Trail II system is ideal for Jeep owners looking to upgrade their suspension for enhanced off-road performance without sacrificing daily driving comfort or factory load-carrying capacity. The kit supports larger tires up to 37 inches with minor trimming or cutting, making it a versatile choice for a wide range of wheel and tire setups.

Key Features:

This comprehensive suspension upgrade offers a range of features designed to improve off-road durability and on-road refinement:

• Replaces all four lower link arms with heavy-duty short arms for increased strength and obstacle clearance
• Large polyurethane bushings on one end and internally threaded ends to accept Fabtech’s 5 Ton Joints for longevity and reduced noise
• Standard single-rate coil springs engineered to retain factory load-carrying capacity while improving suspension performance
• Includes adjustable front track bar for precise alignment and improved handling
• Performance shocks tuned for enhanced off-road damping and on-road comfort
• Front and rear sway bar links included to maintain suspension geometry and stability
• Track bar bracket with rear support for added strength and durability
• Front and rear brake lines and emergency brake bracket for safe and reliable braking system integration
• Front bump stop extensions and rear bump stop brackets to protect suspension components during full articulation
• Supports tire sizes up to 37x12.50R20 with minor trimming or cutting depending on wheel offset and fender configuration

Construction & Design:

Fabtech’s Trail II suspension components are crafted from high-strength steel and engineered to withstand the rigors of aggressive off-road use. The short arm design improves suspension geometry and articulation while reducing the risk of damage from rocks and trail obstacles. Polyurethane bushings provide a quiet, durable connection that resists wear and tear better than factory rubber bushings. The coil springs are designed as a single-rate setup, balancing ride comfort with load capacity to maintain factory towing and payload capabilities. Performance shocks are specifically valved to complement the suspension geometry and spring rates, delivering consistent damping performance across varied terrain.

Installation & Fitment:

The Fabtech Trail II system is designed for direct bolt-on installation using the factory link arm mounts, simplifying the upgrade process. Installation requires moderate mechanical skill and common hand tools. Some minor trimming or cutting of fender components may be necessary to accommodate larger tires, especially when running 37-inch tires or wider wheels. For 2012 and newer Jeep Wrangler JK models, exhaust spacers are required to ensure proper clearance. Additionally, off-road use on 4-door models from 2007 to 2018 may require upgraded driveshafts (front and rear) to handle increased suspension travel and articulation.

What's Included:

• Lower Short Arm Links – Front & Rear
• Standard Coil Springs – Front & Rear
• Adjustable Front Track Bar
• Front Sway Bar Links
• Rear Track Bar Bracket with Support
• Front and Rear Brake Lines
• Emergency Brake Bracket
• Front Bump Stop Extensions
• Rear Bump Stop Brackets
• Performance Shocks

Ideal For:

This suspension system is perfect for Jeep Wrangler JK owners who demand enhanced off-road capability without compromising daily drivability. It suits rock crawlers, trail riders, and overland adventurers who require a durable, high-performance suspension that supports larger tires and aggressive terrain. Whether upgrading a stock Jeep or building a dedicated off-road rig, the Fabtech Trail II system provides a balanced solution for improved articulation, strength, and ride comfort.

Fitment Summary

• Jeep Wrangler Unlimited 70th Anniversary (2011)
• Jeep Wrangler Unlimited 75th Anniversary (2016)
• Jeep Wrangler Unlimited Rubicon (2007–2017)
• Jeep Wrangler Unlimited Sahara (2007–2017)
• Jeep Wrangler Unlimited Sport (2010–2017)
• Jeep Wrangler Unlimited Sport S (2016)
• Jeep Wrangler Unlimited X (2007–2010)
• Jeep Wrangler JK Rubicon (2018)
• Jeep Wrangler JK Sahara (2018)
• Jeep Wrangler JK Sport (2018)
• Jeep Wrangler JK Unlimited Rubicon (2018)
• Jeep Wrangler JK Unlimited Sahara (2018)

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.