JK Wrangler Change Your Vehicle

Standard Coil System

The Rubicon Express Extreme-Duty Long Arm System was the first radius long arm suspension available for the Jeep Wrangler JK. This system has been engineered to work WITH your Jeep’s Electronic Stability Controls and Rubicon edition electronic sway bar WITHOUT compromising safety. Featuring our world-class chromoly Radius Long Arms, the geometry has been meticulously designed to keep pinion and driveshaft angles in phase, while eliminating suspension jacking and unwanted suspension squat. We use 2" x .250 wall Chromoly tubing for our lower control arms for serious off roading use. Our Extreme-Duty Long Arm system coupled with properly valved Rubicon Express shocks allows the JK Wrangler to transmit throttle input to the wheels over varied terrain, providing sure-footed traction and positive suspension feedback. The result is superior on road handling and unrivaled off road performance, without the need to disable factory safety features. The 3.5” suspension will allow the use of 35” tires. The 4.5” suspension will allow the use of 37” tires. Driveline modifications will be required.

  • Applications:

  • *Shocks listed are recommended mono-tubes and are sold separately unless otherwise specificed

Part #YearModelLiftDescriptionFront ShocksRear ShocksMax TireRecommended WheelImportant Information
RE7121M2007-2018JK Wrangler 2DR2.5"Standard coil system W/ Mono Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7122PM
RE7140PM
RE7141M2007-2018JK Wrangler 4DR2.5"Standard coil system W/ Mono Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7142M2007-2018JK Wrangler 4DR3.5"Standard coil systemincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7143M2007-2018JK Wrangler 4DR3.5"Super-Flex systemincinc35X12.509"W,3.75-4.75"B.S
Important Info
RE7145M2007-2018JK Wrangler 4DR3.5"3.5" Sport KitRXJ713RXJ71435x12.59"W.3.75-5.0 B.S.
Important Info