Rock Krawler 2.5 Inch Adventure Mid-Arm System - Jeep JLU

Built for Adventure – On and Off the Trail

The Rock Krawler 2.5" Adventure Mid-Arm System for Jeep Wrangler JLU Sport and Sahara models is a complete, bolt-on suspension upgrade designed for exceptional articulation, durability, and ride quality. Featuring longer mid-arms with service-free Adventure Series joints, this system delivers 35° of misalignment to reduce factory control arm bind and correct front caster. Triple-rate coils provide a smooth, controlled ride on-road while offering the flex and support needed off-road. With geometry correction pads to minimize coil bow and optimized track bar angles to perfectly center the axles, this kit ensures your JLU handles confidently—whether you're hitting the highway or crawling over rocks.

SYSTEM BENEFITS

• Complete bolt in system
• Excellent highway ride and handling
• The best off-road ability of all Mid Arm Systems
• Improved rear roll center
• Tuned Triple Rate Coils
• Spring Correction Seats
• Vehicle lean correction
• Upgradable to RK Longarm System
• Best Technical support in the industry
• Jeep remains level on all 4 corners
• Lifetime Warranty Coverage

PARTS INCLUDED

• (4) Triple rate coil springs
• (2) Front set-length 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

COMPONETS BRAKEDOWN

• RK07014P - Triple Rate Front Coil Springs
• RK07015P - Triple Rate Rear Coil Springs
• RK06187HD - Front Adjustable Track Bar
• RK06779B - Adventure Series Front Lower Control Arms
• RK06775 - Adventure Series Kit Box

WHEEL FITMENT

Sport and Sahara Wheel Fitment Recommendations

• 35” Tall Tires - Recommend 4.5” of Back Spacing
• 37” Tall Tires - Recommend 3.5” of Back Spacing

Rubicon Fitment Recommendations 

• 35" Tall Tires – Recommend 4.5" of Back Spacing
• 37” Tall Tires – Recommend 4.5” of Back Spacing
• 38"/40” Tall Tires – Recommend 3.5" of Back Spacing

TIRE FITMENT

• Sport and Sahara with Full OEM Fenders
• 35” Tall Tires (2” Bump Stop Height Recommended)
• Sport and Sahara with Trimmed or High Lined OEM Fenders
• 37” Tall Tires (3” Bump Stop Height Recommended)
• Rubicon with Full OEM Fenders
• 37” Tall Tires (2” Bump Stop Height Recommended)
• Rubicon with Trimmed or High Lined OEM Fenders
• 38” Tall Tires (3” Bump Stop Height Recommended)

GENERAL NOTES

• All lift heights based on Rubicon models for standard style build (i.e. front bumper and winch, rear bumper and full size spare).
• XR Package does not require OUR raised rear track bar bracket, the factory axle has a raised rear trackbar bracket, and for OUR systems that do not have a rear trackbar one must be added.
• If building with a spare delete we recommend dropping 1” in coil lift height for the rear.
• If building an overland or heavily up-fitted build in the back, we recommend upsizing 1” in coil lift height for the rear.
• We recommend a new front driveshaft if you plan to off-road routinely.