The Rubicon Express Spring-Over Axle Conversion Suspension System Is Designed For The Truly Adventurous Off-Roader, And Is A Fabricator'S Delight. This Suspension System Moves The Leaf Spring Perches To The Topside Of The Axle. The Result Is A Net Lift Height Increase Of 5.5" With Stock Height Springs. The Use Of Stock Spec Springs Will Maintain The Factory Ride Quality While The Spring-Over Configuration Will Greatly Increase The Suspension Flexibility, Allowing Room For Larger Tires And Vastly Improving The Visual Appeal Of Your Jeep. The Rubicon Spring-Over Conversion Kit Gives You The Components Necessary To Move The Leaf Spring Perch To The Top Of The Axle, Increasing Lift And Flexibility. Spring-Over Axle Lifts Retain A Stock-Type Ride Quality By Retaining The Original Leaf Spring. Installation Of This Kit Encompasses Removing The Original Spring Perches, Welding Of New Perches, And Other AdjusTMents. A CV-Type Drive Shaft Is Recommended For This Application. Net Lift From The Conversion Is Minimum 5.5-Inches. For Greater Durability, And A Total Of 7-Inches Of Lift, We Recommend Running Re1445 And Re1444 Extreme-Duty Leaf Springs. Note: Steering Modifications Are Needed On A Spring Over Conversion.