Rock Krawler 3.5" X Factor PRO COILOVER Mid Arm Suspension System for Rock Krawler 2.5" Adventure X Mid Arm Suspension System for Jeep 3.5" GAS JEEP WRANGLER JL JLU LIFT KIT ENFORCER SUSPENSION SYSTEMS 3.5" GAS JEEP WRANGLER JL JLU LIFT KIT ENFORCER SUSPENSION SYSTEMS. Rock Krawler 3. 5 t rex Suspension System for Jeep Wrangler JL (Gas Models) The Rock Krawler Suspension T Rex Hybrid Long arm Systems are the absolute best combination of on road ride handling and off road ability you can get for your Wrangler JL 2 Door when keeping the gas tank in the stock location. Don't shoot the messenger here, but Jeep killed the availability of putting full long arm systems in the front end of 2018 and newer 2 door applications due to the new fuel tanks that go up and over the crossmember all the way to the OEM front lower control arm mount on the frame. We promise it was not our idea! This vary fact is what made us create the Hybrid T Rex System. The T Rex is a full high clearance mid arm front setup with our tried and true ultra high clearance 3 link rear conversion. This gives you the absolute best possible combination to enhance your 2 Door Wrangler Off Road. The stock front suspension geometry on JL JLU applications is really not terrible and is workable. The rear suspension geometry being a parallel 4 link with a track bar (i. e. 5 link rear) is really where the lack luster performance comes into play. This suspension arrangement naturally binds causing jacking when being tasked to perform off road. The Rock Krawler ultra high clearance 3 link with track bar removes the natural binding of stock rear suspension 100 percent allowing for ultra smooth suspension motion in the rear without jacking. A night and day difference. You also get the benefit of X2 rear suspension geometry gaining 4. 5 inch of ground clearance under the rear axle without losing a single centimeter of rear shock travel! The rear roll center is raised significantly to further enhance handling and reduce side to side axle shifting while off road. Make no compromise suspension geometry wise is our motto and T Rex is no exception. All T Rex control arms feature our exceptionally proven Adventure Series joints for years of maintenance free use! System Benefits: Excellent Highway Ride & Off Road Ability Maintenance Free High Ability Control Arms Featuring our Award Winning Adventure Series joints Full High Clearance Design 4 Link Mid arm Front Suspension 3 Link Long arm Rear Suspension 4. 5 Rear Clearance Gain from the X2 Axle Bracket System Adjustable Rear Anti Squat Featuring X2 Geometry Designed to be the Ultimate Compromise between On Highway Handling and Hard Core Off Road Ability Lifetime Warranty Coverage System Includes: (4) Triple rate Coil Springs (4) Spring Correction Seats (1) Front Adjustable Anti wobble Track Bar (1) Front Sway Bar Disconnect Kit (2) Front High Clearance Adjustable Lower Control Arm (2) Front Adjustable Upper Control Arm (2) High Clearance Lower Long Arms (2) Rear Extended Sway Bar Links (1) Rear Upper Control Arm (2) Rear Lower Control Arm (1) Rear Long arm Mount Kit (1) Rear Upper Frame Mount (1) Rear Track Bar Mount (1) Rear Adjustable Track Bar (1) Rear Axle Truss (1) Rear Brake Line Mount Kit (2) Rear Shock Mount (Depending on shock package chosen) Bump Stops Are Included with All Shock Options If you choose no shocks, bump stops can be purchased separately RK07124 Shock Information: All RRD Shocks and Coilovers are designed and built in house Generic Front Shock Length 17. 5 inch Collapsed 29. 5 inch Maximum Extended Generic Rear Shock Length 18. 5 inch Collapsed 30. 5 inch Maximum Extended Bilstein 5100 Shocks A great pairing with our multi rate coil springs Maintenance Free RRD 2. 25 IFP Shocks 2. 25 inch O. D. Military Grade Hard Anodized Fluted Aluminum Shock Body Cooling Surface Area of a 2. 5 inch Shock 3 4 inch 17 4 PH Stainless Steel, Hard Chrome Plated and Polished Shaft Billet Aluminum Valve Circuit and Components Dual DU Shaft Bearings and Double Redundant Sealing Methods Serviceable Rebuildable Revalveable More Info Wheel Fitment: Sport and Sahara Wheel Fitment Recommendations 37 inch 38 inch Tall Tires Recommend 3. 5 inch of Back Spacing Rubicon Fitment Recommendations 37 inch Tall Tires Recommend 4. 5 inch of Back Spacing 40 inch Tall Tires Recommend 3. 5 inch of Back Spacing Tire Fitment: Sport and Sahara with Full OEM Fenders 37 inch Tall Tires (3 inch Bump Stop Height Recommended) Sport and Sahara with Trimmed or High Lined OEM Fenders 38 inch Tall Tires (3 inch Bump Stop Height Recommended) Rubicon Full OEM Fenders 37 inch 38 inch Tall Tires (3 inch Bump Stop Height Recommended) Rubicon OEM Fenders with Trimmed or High Lined 40 inch Tall Tires (3 inch 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. If building with a spare delete, we recommend dropping 1 inch in coil lift height for the rear. If building an overland or heavily upfitted build in the back, we recommend upsizing 1 inch in coil lift height for the rear. Recommend a new front C. V. Driveshaft for all front shocks with max. Extended length greater than 29 Requires welding of the Rear Long Arm Mounts Requires removal of the OEM frame side upper lower rear control arm mounts Requires removal of the OEM axle side rear lower control arm and track bar mounts Requires modifying the OEM rear shock mounts and welding of the raised rear upper shock mounts Recommend installing limiting straps to avoid over extension of suspension components after vehicle is all set up