Rock Krawler JK45XFLA-2S1 JK 4.5 Inch X Factor Long Arm Lift Kit w/ Stg 1 Shocks 07-18 Wrangler 2 Dr

Code: JK45XFLA-2S1


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The Rock Krawler JK 4.5 inch X-Factor Long Arm System is the best performing trail suspension for JK owners looking to run 37 inch tall tires with stock fenders or 38 inch/40 inch tall tires with flat fenders. This system features the Rock Krawler Independent Three Link Conversion. The Independent Three Link’s 100 percent bind free design has proven its self to be the best choice for those looking for maximum articulation while maintaining a factory like highway ride and tight handling.

This system features the best in class cross over angles and ground clearance. The rear suspension features adjustable anti-squat so you can dial in your JK’s suspension to your liking. All of the high clearance lower control arms are made from 2 inch O.D. 7/16 wall DOM steel and built for abuse. Like all other JK X-Factor Systems the rear axle has been moved back 1 inch to allow for greater clearance between the tire and factory sliders for Rubicon Owners. This system is completely upgradeable to any other Rock Krawler Wrangler JK System and comes with our exclusive Abuse Proof Lifetime Warranty on all hard parts!

System Benefits:

  • Excellent Highway Ride and Handling
  • Unbelievable Off-Road Ability
  • Independent 3 Link Conversion (100 percent Bind Free Suspension)
  • Best in Class Ground Clearance and Cross Over Angles
  • Adjustable Rear Anti-Squat
  • In Vehicle Adjustable Front Upper Arm making Alignment a Snap
  • High Steer Upgrade with Off-Road Pro Drag Link
  • Long Travel Functional Multi Rate Coil Springs
  • PRO Front Sway Bar Disconnects/Extended Links
  • PRO Rear Extended Sway Bar Links
  • Repositions the Rear Axle Back up to 1 inch Over Stock
  • Sport Tuned 2.0 RRD Spec’d Prodigy Shocks
  • 37 inch Tires (OEM Fenders)
  • Up to 40 inch Tires (Flat Fenders)
  • Abuse Proof Lifetime Warranty on All Hard Parts
  • Upgradeable to any other Rock Krawler System

System Includes:
(4) Long travel functional multi rate coil springs
(4) 2.0 RRD Spec’d prodigy shocks
(4) High clearance-adjustable lower control arms made of 2.0 inch O.D. 7/16 Wall DOM alloy steel
(2) Double adjustable track bars made from 1.5 inch solid alloy steel with Anti-Wobble joints
(4) Long arm mounts and cross member made from 1/4 inch thick laser cut steel
(2) High misalignment adjustable upper control arms made from 1.625 inch solid alloy steel
(1) Rear independent 3rd link mount made of 1/4 inch thick laser cut steel
(1) Weld on rear axle truss with adjustable anti-squat
(1) track bar relocation bracket made from thick laser cut steel
(1) Off-Road pro drag link
(1) Adjustable front sway bar disconnects
(2) Rear extended sway bar links
(4) Long travel stainless steel brakes
(1) Pair of sway bar straps
(2) Rear coil spring degree wedges
(2) Front spring retainer clips
(4) Extended bump stop pairs, hardware and detailed instructions


  • Welding of the Rear Cradle, Rear Third Link Mount, Long Arm Mounts is required.
  • Removal of the OEM lower control arm mounts is required.
  • Removal of the front upper control arm mount on the driver side is required.
  • Minor exhaust rerouting required before the collector on the driver’s side. This is recommended to be done prior to the suspension system being installed.
  • Recommend installing limiting straps to avoid over extension of suspension components after vehicle is all set up.
  • We typically recommend 4.5 inch of back spacing on rims for 33 inch and 35 inch tall tires.
  • We typically recommend 3.5 inch of back spacing on rims for 37 inch/38 inch tall tires.
  • The X Factor System allows the rear axle to be pushed back up to 1 inch over stock which perfectly centers the rear axle assembly under typical aftermarket flat fenders. It also allows for larger tires without contacting the rock sliders or rear pinch seam.
  • The rear upper third link is designed around standard low pinion rear axles. When ordering for high pinion rear axles please contact us directly so we can ensure proper fitment as best as possible

Additional information

Manufacturer Part Number



Rock Krawler


2007,2017,Jeep,Wrangler,, 2007,2016,Jeep,Wrangler,Rubicon, 2007,2016,Jeep,Wrangler,Sahara, 2007,2010,Jeep,Wrangler,X, 2010,2016,Jeep,Wrangler,Sport, 2011,2011,Jeep,Wrangler,70th Anniversary, 2016,2016,Jeep,Wrangler,75th Anniversary, 2016,2016,Jeep,Wrangler,Sport S, 2018,2018,Jeep,Wrangler JK,

Country of Origin


Lift Height

4.5 Inch


Front, Rear


Includes 2.0 Smooth Body RRD Racing Shocks and Bump Stops F/R

Number of Boxes


Includes Shocks


Recommended Tire Size


Kit Components

<p>RK02001 Triple Rate Coil Springs 1<br>RK02002 Triple Rate Coil Springs 1<br>RK02024 2 Inch to 4 Inch Double Adjustable Track Bar 1<br>RK02234 Lower Control Arm 2<br>RK02329 Rear Lower Control Arm 2<br>RK04168 Upper Long Arm 1<br>RK04899 Long Arm Brackets 1<br>RK04900 Rear Upper Conversion 1<br>RK02026 Bomb Proof Double Adjustable Rear Track Bar for 3 Inch to 6 Inch of Lift 1<br>RK05071 4.5 Inch/5.5” X-Factor/Triple Threat Kit Box 1<br>RK04389 Drag Link 1<br>RRD02182 2.0 Inch Emulsion Shock for 4.5 Inch Lift – (11 Inch Travel) 2<br>RRD02183 2.0 Inch Emulsion Shock for 4.5 Inch Lift – Rear (10.5 Inch Travel) 2<br>RK03415 3 Inch Billet Aluminum Stackable Bump Stop 1<br>RK03623 3 Inch Fabricated Rear Bump Stop 1<br>RK04124 Poly Bump Stop Extension 1<br>RK04125 Poly Bump Stop Extension 1</p>

Lift Heigh

4.5 Inch

Vehicle Fitment

Year Make Model Trim
2007 Jeep Wrangler
2008 Jeep Wrangler
2009 Jeep Wrangler
2010 Jeep Wrangler
2011 Jeep Wrangler
2012 Jeep Wrangler
2013 Jeep Wrangler
2014 Jeep Wrangler
2015 Jeep Wrangler
2016 Jeep Wrangler
2017 Jeep Wrangler
2011 Jeep Wrangler 70th Anniversary
2016 Jeep Wrangler 75th Anniversary
2007 Jeep Wrangler Rubicon
2008 Jeep Wrangler Rubicon
2009 Jeep Wrangler Rubicon
2010 Jeep Wrangler Rubicon
2011 Jeep Wrangler Rubicon
2012 Jeep Wrangler Rubicon
2013 Jeep Wrangler Rubicon
2014 Jeep Wrangler Rubicon
2015 Jeep Wrangler Rubicon
2016 Jeep Wrangler Rubicon
2007 Jeep Wrangler Sahara
2008 Jeep Wrangler Sahara
2009 Jeep Wrangler Sahara
2010 Jeep Wrangler Sahara
2011 Jeep Wrangler Sahara
2012 Jeep Wrangler Sahara
2013 Jeep Wrangler Sahara
2014 Jeep Wrangler Sahara
2015 Jeep Wrangler Sahara
2016 Jeep Wrangler Sahara
2010 Jeep Wrangler Sport
2011 Jeep Wrangler Sport
2012 Jeep Wrangler Sport
2013 Jeep Wrangler Sport
2014 Jeep Wrangler Sport
2015 Jeep Wrangler Sport
2016 Jeep Wrangler Sport
2016 Jeep Wrangler Sport S
2007 Jeep Wrangler X
2008 Jeep Wrangler X
2009 Jeep Wrangler X
2010 Jeep Wrangler X
2018 Jeep Wrangler JK


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