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3.5 Inch X Factor System - 4 Door JKU

SKU JK35XF-4
Original price $0.00 - Original price $0.00
Original price $0.00
$2,933.94
$2,933.94 - $4,133.00
Current price $2,933.94

The Rock Krawler Suspension JKU Wrangler 3.5 inch X-Factor 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. 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 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 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 adjustable lower control arms
  • (2) Front adjustable upper control arms
  • (1) Adjustable front track bar
  • (2) Quick Disconnect Front sway bar links
  • (2) Rear adjustable lower control arms
  • (2) Rear adjustable upper control arms
  • (2) Rear spring pads
  • (2) Adjustable rear sway bar links
  • (1) Bolt-on rear track bar relocation bracket
  • Front and Rear extended brake lines

(*DEPENDING ON SHOCK PACKAGE CHOSEN*)

  • Bumpstops are included with all shock options
  • IF YOU CHOOSE NO SHOCKS - BUMPSTOPS CAN BE PURCHASED SEPARATELY - RK07123
  • Twin Tube Shocks / 2.25"RRD shocks

 Shock Information:

  • Generic Front Shock Length – 17.5” Collapsed/ 28” Maximum Extended
  • Generic Rear Shock Length – 16.3” Collapsed/ 26.31” 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 RRD04000
  • RRD Spec Twin Tube Rear Shock
  • Part Number RRD04002
  • FULL PACKAGE = RRD04012

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 RRD02291
  • RRD Spec Rear Shock
  • Part Number RRD02292
  • FULL PACKAGE = RRD02305
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:

  • 33" or 35" Tires using OEM fender flares
  • 37" tires if using flat fenders
 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” 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)

Highlift Offroad Special Product!