Rock Krawler JL45AX2LA-4DTR 4.5 Inch Adventure-X2 Long Arm Trail Runner Suspension System Diesel

The Rock Krawler JL45AX2LA-4DTR is a 4.5-inch Adventure-X2 Long Arm Trail Runner suspension system engineered specifically for 4-door Jeep Wrangler JL diesel models. Designed and manufactured in the USA, this system delivers the ideal balance between daily driving comfort and hardcore off-road performance, making it one of the most versatile long-arm lift kits available for the JL platform.

Adventure-X2 Suspension Architecture:

• Full high-clearance 4-link long arm front suspension for maximum articulation and improved geometry over stock
• High-clearance independent 3-link long arm rear suspension with X2 rear geometry featuring enhanced rear instant center and rear roll center tuning
• 4.5 inches of additional ground clearance under the rear axle compared to stock via new high-clearance axle mounts
• Rear upper shock relocation brackets preserve full shock and suspension travel
• 2.625-inch coilover shocks front and rear for superior damping and tunability

Service-Free Joint Technology:

• Adventure Series maintenance-free joints at frame-side lower control arm connections eliminate grease points
• Each joint features a steel sleeve rotating on a Teflon-lined inner sleeve to prevent wear through mud, sand, and rock terrain
• Absorbs road and trail vibrations similar to OEM bushings for refined on-road manners
• Joint housings backed by a 10-year warranty

Diesel-Specific Engineering:

• Engineered to handle the added weight and torque loads associated with the Jeep Wrangler JL diesel powertrain
• Thermal heat shield barriers protect front control arm joints from diesel engine heat — just like OEM
• System design is stable and safe whether running stock drivetrain or higher output configurations

Trail Runner System Highlights:

• Designed for rock crawling, trail running, and towing duty
• Compatible with 37-inch to 40-inch tires depending on fender configuration
• Combines street-friendly on-road handling with serious off-road articulation capability
• Lifetime warranty on all hard parts; lifetime technical support guarantee from Rock Krawler

Rock Krawler Suspension designs and manufactures all of their Jeep suspension products in the northeastern United States, applying lessons learned from countless custom one-off Jeep builds directly into their production systems. The JL45AX2LA-4DTR Trail Runner system is a comprehensive, bolt-in upgrade that transforms your diesel JL Wrangler into a capable trail machine without sacrificing everyday drivability.