Rock Krawler JT45PXNL-TR 4.5 Inch PRO-X No Limits Trail Runner Mid-Arm Suspension System

The Rock Krawler JT45PXNL-TR is the 4.5-inch PRO-X "No Limits" Trail Runner Mid-Arm Suspension System — a complete, bolt-in coilover lift solution engineered for maximum articulation and trail performance. The Trail Runner configuration features 2.625" RRD Racing Coilovers with Remote Reservoirs at all four corners, delivering 14.4 inches of front axle travel and up to 15 inches of rear axle travel for unmatched off-road capability.

"No Limits" Sway Bar Technology:

The "No Limits" designation refers to the inclusion of specially engineered front sway bar links that allow Rubicon owners to retain and use the factory electronic sway bar disconnect feature while still achieving full suspension articulation. These links feature a CNC machined billet aluminum center section and USA-made FK Bearing heim joints with factory-sized hardware.

Key Features:

• PRO-X Triangulated 4-Link Rear Assembly — keeps the rear axle perfectly centered, allows removal of the rear track bar, eliminates rear suspension bind, and greatly smooths highway ride quality
• 8 Adjustable X-Factor Series Control Arms — industry-leading upper and lower arms with up to 95 degrees of misalignment when paired with Pro-X Krawler Joints and Adventure Series joints
• Adventure Series Joints at frame connections (maintenance-free); PRO Krawler Joints at axle connections for maximum durability
• Trail Runner Coilover System — 13-inch travel front RRD 2.625" remote reservoir coilovers yielding 14.4" of front axle travel; 12-inch travel rear RRD 2.625" remote reservoir coilovers yielding 15" of rear axle travel
• Triple-Rate Front Coils / Quad-Rate Rear Coils — precisely tuned spring rates for controlled on-road ride and aggressive off-road performance
• Spring Correction Seats and Track Bar Geometry Corrections included to eliminate factory spring bow and perfectly center both axles
• Compatible with Dana OEM, Dana UD60, and Dynatrac XD60 axle applications
• Abuse Proof Lifetime Warranty on all hard parts (control arms, track bars, and mounting brackets); joint housings backed by a 10-year warranty

The Rock Krawler PRO-X Trail Runner system is the pinnacle of bolt-in mid-arm suspension for the JT Gladiator platform — precision-engineered and manufactured in the USA for the off-road enthusiast who demands the best geometry, maximum articulation, and a well-tuned street-to-trail ride.