Extreme-Duty Long Arm Upgrade

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 #
JK004CC
JK014CC
JK104CC
JK4343
JK4343M
JK4345
JK4345R
JK44232007-2015JK Wrangler 2DR3.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ713R/ERXJ71435X12.50 9"W,3.75-4.25"B.S
Important Info
JK4423M2007-2015JK Wrangler 2DR3.5"Extreme Duty 4-Link Long Arm System w/ rear 4-Linkincinc35X12.50 9"W,3.75-4.25"B.S
Important Info
JK44242007-2015JK Wrangler 2DR4.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ711R/ERXJ712 37X12.509"W,3.75-4.25"B.S
Important Info
JK4424M2007-2015JK Wrangler 2DR4.5"Extreme Duty 4-Link Long Arm System w/ rear 4-Linkincinc37X12.509"W,3.75-4.25"B.S
Important Info
JK44252007-2015JK Wrangler 2DR5.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ715R/ERXJ71637X13.509"W,3.75-4.25"B.S
Important Info
JK4425R
JK44432007-2015JK Wrangler 4DR3.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ713R/ERXJ71435X12.50 9"W,3.75-4.25"B.S
Important Info
JK4443M2007-2015JK Wrangler 4DR3.5"Extreme Duty 4-Link Long Arm System w/ rear 4-Linkincinc35X12.50 9"W,3.75-4.25"B.S
Important Info
JK44442007-2015JK Wrangler 4DR4.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ711R/ERXJ71237X12.509"W,3.75-4.25"B.S
Important Info
JK4444M2007-2015JK Wrangler 4DR4.5"Extreme Duty 4-Link Long Arm System w/ rear 4-Linkincinc37X12.509"W,3.75-4.25"B.S
Important Info
JK44452007-2015JK Wrangler 4DR5.5"Extreme Duty 4-Link Long Arm System w/ rear 4-LinkR/ERXJ715R/ERXJ71637x13.509"W,3.75-4.25"B.S
Important Info
JK4445R
JK444CC
JK4R23
JK4R23M
JK4R43
JK4R43M
JKR343
JKR343M
JKR423
JKR423M
JKR424
JKR443
JKR443M
JKR444M
JKRR232007-2015JK Wrangler 2DR3.5"Extreme-Duty Long Arm37X12.509"W,3.75-4.75"B.S
Important Info
JKRR23M2007-2015JK Wrangler 2DR3.5"Extreme-Duty Long ArmRXJ713RXJ71437X12.509"W,3.75-4.75"B.S
Important Info
JKRR242007-2015JK Wrangler 2DRExtreme-Duty Long Arm37X12.509"W,3.75-4.75"B.S
Important Info
JKRR24M2007-2015JK Wrangler 2DRExtreme-Duty Long ArmRXJ711RXJ71237X12.509"W,3.75-4.75"B.S
Important Info
JKRR432007-2015JK Wrangler 4DRExtreme-Duty Long Arm37X12.509"W,3.75-4.75"B.S
Important Info
JKRR43M2007-2015JK Wrangler 4DRExtreme-Duty Long ArmRXJ713RXJ71437X12.509"W,3.75-4.75"B.S
Important Info
JKRR442007-2015JK Wrangler 4DRExtreme-Duty Long Arm37X12.509"W,3.75-4.75"B.S
Important Info
JKRR44M2007-2015JK Wrangler 4DRExtreme-Duty Long ArmRXJ711RXJ71237X12.509"W,3.75-4.75"B.S
Important Info
RE71212007-2015JK Wrangler 2DR2.5"Standard coil systemRXJ713RXJ71435x12.509"W,3.75-5.0"B.S.
Important Info
RE7121M2007-2015JK Wrangler 2DR2.5"Standard coil system W/ Mono Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7121T2007-2015JK Wrangler 2DR2.5"Standard coil system W/ Twin Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71222007-2015JK Wrangler 2DR3.5"Standard coil systemRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S.
Important Info
RE7122M2007-2015JK Wrangler 2DR3.5"Standard coil systemincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71232007-2015JK Wrangler 2DR3.5"Super-Flex systemRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S.
Important Info
RE7123M2007-2015JK Wrangler 2DR3.5"Super-Flex systemincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71242007-2015JK Wrangler 2DR4.5"Super-Flex systemRXJ711RXJ71237x12.509" W, 3.75-5.0" B.S.
Important Info
RE7124M2007-2015JK Wrangler 2DR4.5"Super-Flex systemincinc37x12.509" W, 3.75-5.0" B.S.
Important Info
RE7124T
RE71252007-2015JK Wrangler 2DR3.5"3.5" Sport Kit35x12.59"W.3.75-5.0 B.S.
Important Info
RE7125M2007-2015JK Wrangler 2DR3.5"3.5" Sport KitRXJ713RXJ71435x12.59"W.3.75-5.0 B.S.
Important Info
RE7125T2007-2015JK Wrangler 2DR3.5"3.5" Sport KitRXT2421BRXT2420B35x12.59"W.3.75-5.0 B.S.
Important Info
RE7127
RE7127M
RE7127T
RE7128
RE7128M
RE7128T
RE71322007-2015JK Wrangler 2/4 Door2"Economy Kitnot incnot inc 35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71332007-2015JK Wrangler 2/4 Door2.5"N/ARXJ713RXJ714N/A9" W, 3.75-5.0" B.S.
Important Info
RE7133E2007-2015JK Wrangler 2/4 Door2.5"Economy kit35x12.509" W, 3.75-5.0" B.S
Important Info
RE7133M2007-2015JK Wrangler 2/4 Door2.5"Economy kitRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S
Important Info
RE7133T2007-2015JK Wrangler 2/4 Door2.5"Economy kitRXT2420BRXT2421B35x12.509" W, 3.75-5.0" B.S
Important Info
RE71412007-2015JK Wrangler 4DR2.5"Standard coil systemRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S.
Important Info
RE7141M2007-2015JK Wrangler 4DR2.5"Standard coil system W/ Mono Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE7141T2007-2015JK Wrangler 4DR2.5"Standard coil system W/ Twin Tube Shocksincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71422007-2015JK Wrangler 4DR3.5"Standard coil systemRXJ713RXJ71435x12.509" W, 3.75-5.0" B.S.
Important Info
RE7142M2007-2015JK Wrangler 4DR3.5"Standard coil systemincinc35x12.509" W, 3.75-5.0" B.S.
Important Info
RE71432007-2015JK Wrangler 4DR3.5"Super-Flex systemRXJ713RXJ71435X12.509"W,3.75-4.75"B.S
Important Info
RE7143M2007-2015JK Wrangler 4DR3.5"Super-Flex systemincinc35X12.509"W,3.75-4.75"B.S
Important Info
RE71442007-2015JK Wrangler 4DR4.5"Super-Flex systemRXJ711RXJ71237X12.509"W,3.75-4.75"B.S
Important Info
RE7144M2007-2015JK Wrangler 4DR4.5"Super-Flex systemincinc37X12.509"W,3.75-4.75"B.S
Important Info
RE71452007-2015JK Wrangler 4DR3.5"3.5" Sport Kit35x12.59"W.3.75-5.0 B.S.
Important Info
RE7145M2007-2015JK Wrangler 4DR3.5"3.5" Sport KitRXJ713RXJ71435x12.59"W.3.75-5.0 B.S.
Important Info
RE7145T2007-2015JK Wrangler 4DR3.5"3.5" Sport KitRXT2421BRXT2420B35x12.59"W.3.75-5.0 B.S.
Important Info
RE7147
RE7147M
RE7147T
RE7148
RE7148M
RE7148T
RE73332007-2015JK WranglerExtreme Duty Long Arm Rear 3-Link Suspension Upgrade Kit9" W, 3.75-4.25" B.S.
Important Info
RE9922