Wrangler JK Rubicon / Sahara / Sport / Unlimited Rubicon / Unlimited Sahara / Unlimited Sport 2018, Standard Series Front and Rear Suspension Lift Kit with 2.5"-3.5" Front and 1.5"-2" Rear Lift Height (JK2501KCR-N) by Skyjacker. Max Tire Size: 34"x12.5". Skyjacker is the name to consider when it comes to upgrading your suspension system. Opt for top-notch suspension components offering a dramatic change in your vehicles performance.