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Rubicon Express Extreme Duty Long Arm Suspension

The Rubicon Express 5.5-inch Extreme-Duty long-arm suspension system is a complete suspension-replacement kit. In addition to new lifted leaf springs for the rear, the system uses new, longer upper and lower control arms up front, which bolt to a new three-piece transmission crossmember.
Rubicon XJ Extreme-Duty Long-Arm System - Absolute Improvement

The Rubicon Express 5.5-inch Extreme-Duty long-arm suspension system is a complete suspension-replacement kit. In addition to new lifted leaf springs for the rear, the system uses new, longer upper and lower control arms up front, which bolt to a new three-piece transmission crossmember.  View Related Article