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Rock Krawler 4.5" Rock Runner System for 07-18 Jeep Wrangler JK 2 Door

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The 4.5 Rock Runner System is the ultimate trail suspension for Wrangler JK owners period! The steering geometry has been engineered to provide you with stock on highway handling characteristics. What makes this long arm system stand out above all the rest is the Revolutionary Independent Three Link conversion front and rear. This has become a Rock Krawler Suspension trade mark. All of their Jeep Long Arm systems feature this very same design up front.

On the new Wrangler JK's they used it in the rear as well so no gas tank modifications would be required. The Independent Three Link has been proven as the best suspension design for high articulation demands while maintaining precise street control. There is no limit to what you can do with the 4.5 Rock Runner Long Arm System. No detail has been overlooked. The rear features adjustable anti-squat so you can tune your JK for your off-road pleasure. All the lower control arms are adjustable, have high clearance and are made from 2" solid alloy steel for extreme use. They provide you with even the little things such as heavy duty rear lower control arm mounts with integrated coil over mounts that are raised 2" to improve ground clearance. Like all other X Factor Mid Arm and Long Arm Systems for the Wrangler JK, the rear axle has been moved back 1" to allow for greater clearance between the tire and factory sliders for Rubicon Owners.

The big bonus of this system is the inclusion of massive long travel remote reservoir coil over shocks front and rear! The RRD coil over assemblies feature a true dual rate coil assembly for improved off-road ability with massive off camber gains! The adjustability of height both front and rear allows you to dial in the stance of your JK just as you want it.

  • Excellent Highway Ride and Handling
  • Unbelievable Off-Road Performance
  • Independent 3 Link Conversion Front and Rear (100% Bind Free Suspension)
  • Best in Class Ground Clearance and Cross Over Angles
  • Adjustable Rear Anti-Squat
  • Fully Adjustable Components
  • High Steer Upgrade w/ Off-Road Pro Drag Link
  • Massive 13" Travel 2.625" RRD Coil Overs Up Front (Select Either Emulsion or Remote Reservoir)
  • Massive 11" Travel 2.625" RRD Coil Overs in the Rear (Select Either Emulsion or Remote Reservoir)
  • Repositions the Rear Axle Back 1"
  • 37" Tires (OEM Fenders)
  • Up to 40" Tires (Flat Fenders)
  • Abuse Proof Lifetime Warranty on All Hard Parts
Installation Notes
Installation Difficulty:
Level 4Experts Only

1. Welding required.

Installation Time: 10-12 hours
Parts Included
  • 4 Tuned 2.625 RRD coil over shock assemblies (Select Either Emulsion or Remote Reservoir)
  • 8 Weld on coil over mounts
  • 4 High clearance-adjustable lower control arms made of 2.0" solid alloy steel
  • 2 Double adjustable track bars made from 1.5" solid alloy steel
  • 4 Long arm mounts and cross member made from 1/4" thick laser cut steel
  • 2 High misalignment adjustable upper control arms made from 1.625" solid alloy steel
  • 1 Rear independent 3rd link mount made of 1/4" thick laser cut steel
  • 1 Weld on rear axle truss with adjustable anti-squat
  • 1 Rear track bar relocation bracket made from thick laser cut steel
  • 1 Front 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
  • 2 Extended rear bump stop pairs, hardware and detailed instructions
Limited Lifetime Warranty
  • Features: Adjustable Control Arms, Coil Over, Front Sway Bar Disconnects, High Steer Kit, Long Arm, Subframe
  • Shocks Included: With Shocks
  • Max Tire Size: 37
  • Lift Height Range: 3 - 4.5 inch
  • Included Parts: Axle Truss, Brake Line Extensions, Bump Stops, Coil Springs, Extended Brake Lines, Front Lower Control Arms, Front Track Bar, Front Upper Control Arms, Hardware, Rear Axle Truss, Rear Lower Control Arms, Rear Track Bar, Rear Upper Control Arms, Sway Bar Endlinks
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  • Jeep Wrangler 2-Door (JK)

  • 2018 Jeep Wrangler 2-Door (JK)
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  • 2009 Jeep Wrangler 2-Door (JK)
  • 2008 Jeep Wrangler 2-Door (JK)
  • 2007 Jeep Wrangler 2-Door (JK)

Rock Krawler 4.5" Rock Runner System Options

Part NumberCatalog #Shock OptionPrice
JK45RNR-2S116189.2217Emulsion Shocks$6,359.00
JK45RNR-2S216189.2218Remote Reservoir Shocks$7,039.00
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