Driver Lift Kit for JL Wrangler w/ Gas V-6 3.5 Inch lift RockJock 4x4RockJock's Driver Lift Kit for JL Wrangler Unlimiteds, 4 door) with gas, non 392) engines provides 3 1 2 inches of lift and allows for efficient clearance of up to 37 inch tall tires, with minor trimming, larger tires will require aftermarket fenders). This kit is comprised of only the highest end components in the areas of strength, fit, finish, function, and the engineering to back them. This kit is more than sufficient for those who want to lift