Rock Krawler JT45NL-TR 4.5 Inch X-Factor No Limits Mid-Arm Suspension System Trail Runner

The Rock Krawler JT45NL-TR is a 4.5-inch X-Factor "No Limits" Mid-Arm Suspension System configured with the Trail Runner coilover package — delivering maximum off-road articulation, a complete bolt-in installation experience, and precision-tunable geometry for serious Rubicon-trim Gladiator owners.

The "No Limits" name reflects the inclusion of specially engineered front sway bar links designed to work seamlessly with the factory electronic sway bar disconnect system. These links feature factory-sized hardware, a CNC-machined billet aluminum center section, and USA-made FK Bearing heim joints, allowing full use of the factory disconnect button on the trail.

X-Factor Series Control Arms form the backbone of this system. The adjustable upper and lower control arms provide up to 95 degrees of total misalignment when paired with Pro-X Krawler Joints and Adventure Series joints, dramatically reducing the bind inherent in factory JT control arms. Maintenance-free Adventure Series joints handle the frame-side connections, while PRO Krawler Joints manage the axle-side connections — together enabling precise caster and pinion angle tuning front and rear.

Trail Runner Shock Configuration: The Trail Runner system pairs RRD 2.625" coilover shocks both front and rear, delivering a full coilover experience at all four corners. This setup yields up to 14.4 inches of front axle travel and up to 15 inches of rear axle travel, making it the ideal choice for those who want maximum suspension performance with dedicated coilover tuneability at every wheel.

Key Features:

• 4.5 inches of lift with triple-rate front coils and quad-rate rear coils for improved on-road ride over factory linear-rate springs
• Trail Runner coilover system — front and rear RRD 2.625" coilover shocks with remote reservoirs for superior damping and heat management
• X-Factor Series adjustable control arms — upper and lower, front and rear, with 95 degrees of total misalignment capability
• No Limits sway bar links — CNC billet aluminum center, FK Bearing USA heim joints, compatible with factory electronic disconnect
• Maintenance-free Adventure Series joints at all frame connections; PRO Krawler Joints at all axle connections
• Front and rear track bar geometry corrections to properly center both axles and maintain on-road handling
• Spring correction seats and pads included to eliminate factory spring bow
• Bolt-in installation — no cutting or welding required for standard fitment
• Abuse-Proof Lifetime Guarantee on all hard parts including control arms, track bars, and mounting brackets

Whether navigating technical rock trails or cruising daily streets, the Rock Krawler JT45NL-TR Trail Runner system is engineered to deliver exceptional performance in both environments, combining the articulation of a purpose-built off-road suspension with the on-road composure expected of a daily driver.