4.5 Inch X-Factor Pro Elite Mid-Arm Suspension System for Jeep Wrangler JK With IFP Shocks Rock Krawler

Rock Krawler 4.5 X-Factor Pro Elite Mid-Arm Suspension System for Jeep Wrangler JK

The Rock Krawler Suspension 4.5 X-Factor Pro Elite Mid-Arm System is specifically designed for Wrangler owners who want a complete system, bolt-in installation, and the best articulation of any mid-arm kit on the market. The lower control arms are our signature PB+J (Pure Beef and Jealousy) mid-arms machined from 2 inch x 3 inch billet 7075 Aluminum.

All 4 other control arms are machined from round 7075 Aluminum and come with the benefits of X-Factorbuilt right in. Our system proves its durability and off-road performance every time you hit the streets or trail!

Our industry-leading, X-Factor Series, adjustable upper and lower control arms offer a total of 95 degrees of misalignment when paired with our Pro-X Krawler Joints and Adventure Series joints. The inherent bind in a factory JK control arm is greatly reduced.

Our maintenance-free Adventure Series joints are found in your front and rear control arms at the frame connection, while our PRO Krawler Joints tie in your axle connections. With so much adjustability, it allows you to precision tune the JK's caster and pinion angle front and rear.

Driving you home with the most comfortable ride possible in a Wrangler, are our Triple-Rate coils. All 4 coils work together to achieve excellent on-road comfort that we feel is better than the OEM linear rate 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 has a very controlled reaction to bumps, rocks, sand, mud and whatever else you can manage to throw at them! All Rock Krawler JK systems include correction pads that reduce the spring bow inherent in the factory setup.

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 Long-Arm 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) Billet 7075 Aluminum Front Adjustable Lower Control Arms
• (2) Machined 7075 Aluminum Front Adjustable Upper Control Arms
• (1) Adjustable Front Track Bar
• (1) pro-x Top Mount Drag Link
• (2) Quick Disconnect Front Sway Bar Links
• (2) Billet 7075 Aluminum Rear Adjustable Lower Control Arms
• (2) Machined 7075 Aluminum Rear Adjustable Upper Control Arms
• (2) Rear Spring Pads
• (2) Adjustable Rear Sway Bar Links
• (1) Bolt-on Rear Track Bar Relocation Bracket
• (1) Rear Track Bar
• (1) Front and Rear Extended Brake Line Kit
• (Depending on shock package chosen)
• Bump Stops Are Included With All Shock Options
• If you choose no shocks, bump stops can be purchased separately - RK07123

Shock Information:

• All RRD Shocks and Coilovers are designed and built in-house
• Generic Front Shock Length - 18.5 inch Collapsed/29 inch Maximum Extended
• Generic Rear Shock Length - 17.3 inch Collapsed/28.31 inch Maximum Extended 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 Built In-house
• Serviceable/Rebuildable/Revalveable
• More Info

Wheel Fitment:

• We typically recommend 4.5 of backspacing on a wheel used with 33 & 35 tall tires We typically recommend 3.5 of backspacing on a wheel used with 37 tall tires

Tire Fitment:

• Full OEM Fenders 33 or 35 inch Tall Tires Flat Fenders 37 inch Tall Tires

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.
• We recommend a new front driveshaft if you plan to off-road routinely.
• (Adam's Driveshafts, Tom Woods, J.E. Reel)