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
JK13012007-2018JK Wrangler 2/4 Door1.5"Economy Kitnot incnot inc33x12.509" W, 3.75-5.0" B.S
Important Info
JT7099
RE7122P
RE71322007-2018JK Wrangler 2/4 Door2"Economy Kitnot incnot inc 35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7140P
RE71412007-2018JK Wrangler 4DR2.5"Standard coil systemRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S.
Important Info
RE7142P
RE71432007-2018JK Wrangler 4DR3.5"Super-Flex systemRXJ713RXJ71435X12.509"W,3.75-4.75"B.S
Important Info