Description
Description
Massive Tire Clearance: This 4.5-inch system is the definitive choice for Sport and Sahara owners looking to run 38-inch or 40-inch tires. It provides the vertical room needed for maximum articulation without the tires constantly contacting the body tubs or frame.
Solid Steel “Abuse It” Construction: The Adventure-X control arms are made from solid alloy steel bar stock, making them nearly impossible to bend on a rock. This is a massive upgrade over the hollow, stamped-steel factory arms and is backed by a lifetime warranty on all hard parts.
Maintenance-Free Articulation: Using Rock Krawler’s specialized service-free bushings, this kit offers up to 70 degrees of misalignment. You get the extreme “flex” required for difficult rock crawling without the squeaking or the need for frequent greasing required by traditional spherical joints.
Optimized On-Road Geometry: At 4.5 inches, suspension angles become extreme; this kit corrects them by including a heavy-duty adjustable front track bar and rear relocation brackets. This centers the axles and raises the roll center, making the tall JLU feel remarkably stable and planted on the pavement.
Correction of Factory Rake: Sport and Sahara models often have a significant “nose-down” rake from the factory. This system is designed to level the vehicle perfectly, even when loaded with heavy aftermarket steel bumpers, winches, and overland gear.
Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.
The Rock Krawler 4.5″ Adventure-X Mid-Arm System is a heavy-duty “big lift” solution specifically engineered to turn a Jeep Wrangler JLU Sport or Sahara into a high-clearance trail machine. At 4.5 inches of lift, this system provides a massive increase in ground clearance, allowing these trims to easily clear 37-inch to 40-inch tires (with appropriate fender modifications). Because the Sport and Sahara models start with a lower factory ride height and lighter-duty suspension components than the Rubicon, the Adventure-X upgrade—featuring 1.75-inch solid alloy steel control arms—represents a total structural overhaul that is significantly stronger than the original equipment.
To manage the higher center of gravity associated with a 4.5-inch lift, this system utilizes triple-rate coil springs that are specifically tuned to keep the four-door JLU stable and composed. These springs provide a plush initial stroke to soak up road chatter on the highway, but firm up quickly to prevent excessive body roll or “diving” during braking. By including all eight adjustable mid-arms, the kit allows you to precisely reset the caster and pinion angles, which is absolutely vital at this height to ensure the Jeep tracks straight at 70 mph and to prevent the “flighty” steering sensation often found in taller, less complete lift kits.
Installation NotesInstallation Difficulty:Level 3AdvancedInstallation Time:8-10 hours Installation
Instructions Parts Included
- (4) Triple-rate Coil Springs
- (1) Gen-II Front Sway Bar Kit
- (2) Front Adjustable Lower Control Arms
- (2) Rear Adjustable Lower Control Arms
- (2) Front Adjustable Lower Control Arms
- (2) Rear Adjustable Lower Control Arms
- (2) Front Spring Pads
- (1) Adjustable Front Track Bar
- (2) Rear Spring Pads
- (2) Set-length Rear Sway Bar Links
- (1) Bolt-on Rear Track Bar Relocation Bracket
Warranty Lifetime Warranty.
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