The TeraFlex JK Front Upper Long Adjustable FlexArm can be added to any existing 2.5-6 inch Elite LCG suspension lift. FlexArms allow custom pinion and caster angles to be set for proper alignment, they also are used to re-center the axle in the wheel well for proper suspension movement, and to adjust wheelbase length. This kit includes one adjustable JK front upper long FlexArm.Fits: 07-Present Jeep Wrangler JK 07-Present Jeep Wrangler Unlimited JK Details: JK Front Upper Long Adjustable FlexArm Used To Align And Re-Center The Axle For Elite LCG Lifts Of 2.5-6 Inches Fully Adjustable Black Powdercoat Finish Sold Individually