Perfect sized lift for those who want a nice lift, but need to haul trailers. This lift uses large capacity air bags coupled with "ping" or "surge" tanks to allow air to transfer from the bags to the tanks, allowing for a smooth ride when empty and unbelievable load-carrying capacity. A 1 3/8" sway bar keeps the truck handling like a dream. This kit drops to a 2" kit when deflated and tops out at close to 9" when parked! 35" tires are perfect for this kit.