The Rock Krawler Suspension JLU Wrangler 2.5 inch Ultimate Adventure DIESEL Mid-Arm System is specifically designed for Wrangler owners who want a complete system, bolt-in installation, and some of the best articulation of any MID-ARM kit on the market. Our system proves its durability and off-road performance every time you hits the streets or trail! The Term, "Ultimate Adventure System" comes from the inclusion of 4 non-adjustable Lower control and 4 fully adjustable upper arms with our 100% Service Free Adventure Series joints installed. Our industry leading, Adventure series mid-Arms offer a total of 70 degrees of misalignment when paired with our Adventure series Joints at the frame connection and at the axle. The inherent bind in a factory JL/JT control arm is greatly reduced. Driving you home with the most comfortable ride possible in a Wrangler, are our TRIPLE RATE front and rear coils. All 4 coils work together to achieve excellent on-road comfort that we feel is better than the OEM springs. The coil itself is built with the proper "Free-length" for off-road articulation and stays firmly seated in the coil bucket (as long as a proper length shock is installed), and overall, a very controlled reaction to bumps, rocks, sand, mud and whatever else you can manage to throw at them! All Rock Krawler JL systems include correction pads that reduce the spring bow inherent in the factory set up. The provided track bar geometry corrections, both front and rear, lets you perfectly center the axles so there is no compromise in on road handling. When we design a system, our goal is to provide you with the most comprehensive solution and the best geometry, install exceptional value, and be the foundation for every adventure whether it be on the Street, In tow, or down a Trail! Thank you for considering Rock Krawler Suspension 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 System Includes: (4) Triple rate coil springs (2) Front set-length lower control arms (2) Rear set-length lower control arms (2) Front upper adjustable control arms (2) Rear upper adjustable 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 (*DEPENDING ON SHOCK PACKAGE CHOSEN*) Bumpstops are included with all shock options IF YOU CHOOSE NO SHOCKS - BUMPSTOPS CAN BE PURCHASED SEPARATELY - RK07124 Twin Tube Shocks / 2.25"RRD shocks Shock Information: Generic Front Shock Length – 16.8” Collapsed/ 27.3” Maximum Extended Generic Rear Shock Length – 17.8” Collapsed/ 29.31” Maximum Extended TT Shocks: Steel bodied, can be installed with shaft up or down, excellent for daily drivers and weekend warriors RRD Spec Twin Tube Front Shock Part Number RRD04003 RRD Spec Twin Tube Rear Shock Part Number RRD04004 FULL PACKAGE = RRD04013 requires 3" bump stops both front and rear RRD Spec'd 2.25" Shocks: IN-HOUSE Designed and built - 2.25" Fluted aluminum construction, hard coat military grade black anodizing, 7/8" shaft, IFP (Internal floating piston), better bushings to achieve better misalignment, fully serviceable and rebuildable RRD Spec Front Shock Part Number RRD02283 RRD Spec Rear Shock Part Number RRD02284 FULL PACKAGE = RRD02307 requires 3" bump stops both front and rear 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.(Adam's Drivesahft,Tom Woods,J.E. Reel)
