Categories Control Arms Rubicon Express JK Control Arm Rear Upper Adjustable Extreme duty 07-18 JK/JKU – RE4540 Post author By emboss Post date October 7, 2018 Tags Suspension Control Arm ← Rubicon Express U Bolt Kit Rear Dana 44 – RE2445 → Rubicon Express 3.5 Inch 4 Link Long Arm Lift Kit 07-18 JK Extreme Duty – JK4423